syzbot


KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings

Status: upstream: reported syz repro on 2024/03/22 20:10
Subsystems: net
[Documentation on labels]
Reported-by: syzbot+5fe14f2ff4ccbace9a26@syzkaller.appspotmail.com
First crash: 662d, last: 13m
Cause bisection: introduced by (bisect log) :
commit 5f8ca04fdd3c66a322ea318b5f1cb684dd56e5b2
Author: Chiara Meiohas <cmeiohas@nvidia.com>
Date: Mon Sep 9 17:30:22 2024 +0000

  RDMA/device: Remove optimization in ib_device_get_netdev()

Crash: KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings (log)
Repro: syz .config
  
Discussions (17)
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[syzbot] Monthly net report (Oct 2025) 0 (1) 2025/10/16 08:36
[syzbot] Monthly net report (Sep 2025) 0 (1) 2025/09/15 06:54
[syzbot] Monthly net report (Aug 2025) 0 (1) 2025/08/14 12:42
[syzbot] Monthly net report (Jul 2025) 0 (1) 2025/07/14 07:23
[syzbot] Monthly net report (Jun 2025) 0 (1) 2025/06/13 12:25
[syzbot] Monthly net report (May 2025) 0 (1) 2025/05/12 13:34
[syzbot] Monthly net report (Apr 2025) 0 (1) 2025/04/09 07:11
[syzbot] Monthly net report (Mar 2025) 0 (1) 2025/03/08 22:17
[syzbot] Monthly net report (Feb 2025) 0 (1) 2025/02/05 12:44
[syzbot] Monthly net report (Jan 2025) 0 (1) 2025/01/06 10:01
[syzbot] Monthly net report (Dec 2024) 0 (1) 2024/12/05 09:04
[syzbot] [net?] KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings 8 (28) 2024/10/21 10:09
[PATCH v3 net] Subject: [PATCH] RDMA/core: fix UAF with ib_device_get_netdev() 4 (4) 2024/04/08 14:23
[PATCH 5 net] RDMA/core: fix UAF with ib_device_get_netdev() 2 (2) 2024/04/02 18:22
[PATCH 4 net] RDMA/core: fix UAF with ib_device_get_netdev() 3 (3) 2024/04/02 13:05
[PATCH v2 net] RDMA/core: fix UAF in ib_get_eth_speed 5 (5) 2024/03/28 12:18
[PATCH net] RDMA/core: fix UAF in ib_get_eth_speed 3 (3) 2024/03/28 11:24
Similar bugs (5)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.6 KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings 19 1 131d 131d 0/2 auto-obsoleted due to no activity on 2025/10/05 22:34
linux-6.1 KASAN: use-after-free Read in __ethtool_get_link_ksettings 19 7 407d 541d 0/3 auto-obsoleted due to no activity on 2025/01/02 21:40
upstream KASAN: use-after-free Read in __ethtool_get_link_ksettings net 19 2 1308d 1345d 0/29 auto-closed as invalid on 2022/07/07 00:01
upstream general protection fault in __ethtool_get_link_ksettings net 7 C error unreliable 298 1576d 1735d 0/29 closed as invalid on 2021/10/06 01:39
upstream KASAN: use-after-free Read in __ethtool_get_link_ksettings (2) net 19 1 1202d 1197d 0/29 auto-obsoleted due to no activity on 2022/11/20 15:32
Last patch testing requests (17)
Created Duration User Patch Repo Result
2024/10/21 10:09 2h51m cmeiohas@nvidia.com patch https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next report log
2024/10/20 06:54 21m cmeiohas@nvidia.com patch https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next OK log
2024/10/20 06:49 51m cmeiohas@nvidia.com patch https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next OK log
2024/10/19 17:04 33m cmeiohas@nvidia.com patch https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next report log
2024/10/16 20:28 27m cmeiohas@nvidia.com patch https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next report log
2024/10/16 12:24 1h48m cmeiohas@nvidia.com patch https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next OK log
2024/10/13 15:45 21m cmeiohas@nvidia.com patch https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next report log
2024/10/13 11:44 19m cmeiohas@nvidia.com patch https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next report log
2024/10/13 10:54 34m cmeiohas@nvidia.com patch https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next report log
2024/10/10 13:46 24m cmeiohas@nvidia.com patch https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next report log
2024/10/10 13:27 32m cmeiohas@nvidia.com patch https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next report log
2024/10/10 09:12 16m cmeiohas@nvidia.com patch https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next error
2024/10/10 08:25 16m cmeiohas@nvidia.com patch https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next error
2024/10/08 11:51 22m leon@kernel.org patch https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next report log
2024/10/08 11:44 17m leon@kernel.org patch https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next report log
2024/09/29 10:39 21m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 61387b8dcf1d OK log
2024/09/28 08:22 21m hdanton@sina.com patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 61387b8dcf1d OK log

Sample crash report:
==================================================================
BUG: KASAN: slab-use-after-free in __ethtool_get_link_ksettings+0x1bf/0x200 net/ethtool/ioctl.c:443
Read of size 8 at addr ffff88802f70a2e8 by task kworker/0:1/10

CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Workqueue: events smc_ib_port_event_work
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xcd/0x630 mm/kasan/report.c:482
 kasan_report+0xe0/0x110 mm/kasan/report.c:595
 __ethtool_get_link_ksettings+0x1bf/0x200 net/ethtool/ioctl.c:443
 __ethtool_get_link_ksettings+0x148/0x200 net/ethtool/ioctl.c:450
 ib_get_eth_speed+0x122/0xb50 drivers/infiniband/core/verbs.c:1996
 rxe_query_port+0x108/0x330 drivers/infiniband/sw/rxe/rxe_verbs.c:62
 __ib_query_port drivers/infiniband/core/device.c:2148 [inline]
 ib_query_port drivers/infiniband/core/device.c:2180 [inline]
 ib_query_port+0x441/0x8a0 drivers/infiniband/core/device.c:2170
 smc_ib_remember_port_attr net/smc/smc_ib.c:364 [inline]
 smc_ib_port_event_work+0x12f/0xbf0 net/smc/smc_ib.c:388
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3263
 process_scheduled_works kernel/workqueue.c:3346 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Allocated by task 11440:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:56
 kasan_save_track+0x14/0x30 mm/kasan/common.c:77
 poison_kmalloc_redzone mm/kasan/common.c:400 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:417
 kasan_kmalloc include/linux/kasan.h:262 [inline]
 __do_kmalloc_node mm/slub.c:5627 [inline]
 __kvmalloc_node_noprof+0x3a3/0x9c0 mm/slub.c:7081
 alloc_netdev_mqs+0xd7/0x1550 net/core/dev.c:11900
 rtnl_create_link+0xc08/0xf90 net/core/rtnetlink.c:3641
 rtnl_newlink_create net/core/rtnetlink.c:3823 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3950 [inline]
 rtnl_newlink+0xb69/0x2000 net/core/rtnetlink.c:4065
 rtnetlink_rcv_msg+0x95e/0xe90 net/core/rtnetlink.c:6954
 netlink_rcv_skb+0x158/0x420 net/netlink/af_netlink.c:2552
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x5aa/0x870 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x8c8/0xdd0 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 __sys_sendto+0x4a3/0x520 net/socket.c:2244
 __do_sys_sendto net/socket.c:2251 [inline]
 __se_sys_sendto net/socket.c:2247 [inline]
 __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2247
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 1322:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:56
 kasan_save_track+0x14/0x30 mm/kasan/common.c:77
 __kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:587
 kasan_save_free_info mm/kasan/kasan.h:406 [inline]
 poison_slab_object mm/kasan/common.c:252 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:284
 kasan_slab_free include/linux/kasan.h:234 [inline]
 slab_free_hook mm/slub.c:2523 [inline]
 slab_free mm/slub.c:6611 [inline]
 kfree+0x2b8/0x6d0 mm/slub.c:6818
 device_release+0xa4/0x240 drivers/base/core.c:2565
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x1e7/0x5a0 lib/kobject.c:737
 netdev_run_todo+0x7e9/0x1320 net/core/dev.c:11601
 default_device_exit_batch+0x858/0xaf0 net/core/dev.c:12822
 ops_exit_list net/core/net_namespace.c:205 [inline]
 ops_undo_list+0x363/0xab0 net/core/net_namespace.c:252
 cleanup_net+0x41b/0x8b0 net/core/net_namespace.c:695
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3263
 process_scheduled_works kernel/workqueue.c:3346 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

The buggy address belongs to the object at ffff88802f70a000
 which belongs to the cache kmalloc-cg-4k of size 4096
The buggy address is located 744 bytes inside of
 freed 4096-byte region [ffff88802f70a000, ffff88802f70b000)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff88802f708000 pfn:0x2f708
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff8880327a1d01
flags: 0xfff00000000240(workingset|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000240 ffff88813ffb0500 ffffea0000c20210 ffffea0001823810
raw: ffff88802f708000 0000000000040003 00000000f5000000 ffff8880327a1d01
head: 00fff00000000240 ffff88813ffb0500 ffffea0000c20210 ffffea0001823810
head: ffff88802f708000 0000000000040003 00000000f5000000 ffff8880327a1d01
head: 00fff00000000003 ffffea0000bdc201 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5978, tgid 5978 (syz-executor), ts 177598196873, free_ts 177438999193
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1850
 prep_new_page mm/page_alloc.c:1858 [inline]
 get_page_from_freelist+0x10a3/0x3a30 mm/page_alloc.c:3884
 __alloc_frozen_pages_noprof+0x25f/0x2470 mm/page_alloc.c:5183
 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2416
 alloc_slab_page mm/slub.c:3039 [inline]
 allocate_slab mm/slub.c:3212 [inline]
 new_slab+0x24a/0x360 mm/slub.c:3266
 ___slab_alloc+0xdc4/0x1ae0 mm/slub.c:4636
 __slab_alloc.constprop.0+0x63/0x110 mm/slub.c:4755
 __slab_alloc_node mm/slub.c:4831 [inline]
 slab_alloc_node mm/slub.c:5253 [inline]
 __do_kmalloc_node mm/slub.c:5626 [inline]
 __kmalloc_noprof+0x501/0x880 mm/slub.c:5639
 kmalloc_noprof include/linux/slab.h:961 [inline]
 kzalloc_noprof include/linux/slab.h:1094 [inline]
 __register_sysctl_table+0xb3/0x1900 fs/proc/proc_sysctl.c:1379
 __addrconf_sysctl_register+0x1a2/0x360 net/ipv6/addrconf.c:7323
 addrconf_sysctl_register net/ipv6/addrconf.c:7371 [inline]
 addrconf_sysctl_register+0x15f/0x1f0 net/ipv6/addrconf.c:7360
 ipv6_add_dev+0xb31/0x15f0 net/ipv6/addrconf.c:460
 addrconf_notify+0x53e/0x19e0 net/ipv6/addrconf.c:3650
 notifier_call_chain+0xbc/0x410 kernel/notifier.c:85
 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:2229
 call_netdevice_notifiers_extack net/core/dev.c:2267 [inline]
 call_netdevice_notifiers net/core/dev.c:2281 [inline]
 register_netdevice+0x182e/0x2270 net/core/dev.c:11332
page last free pid 5962 tgid 5962 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1394 [inline]
 __free_frozen_pages+0x7df/0x1160 mm/page_alloc.c:2906
 discard_slab mm/slub.c:3310 [inline]
 __put_partials+0x130/0x170 mm/slub.c:3857
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4d/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:352
 kasan_slab_alloc include/linux/kasan.h:252 [inline]
 slab_post_alloc_hook mm/slub.c:4955 [inline]
 slab_alloc_node mm/slub.c:5265 [inline]
 __kmalloc_cache_noprof+0x274/0x780 mm/slub.c:5743
 kmalloc_noprof include/linux/slab.h:957 [inline]
 kzalloc_noprof include/linux/slab.h:1094 [inline]
 ref_tracker_alloc+0x18e/0x5b0 lib/ref_tracker.c:271
 __netdev_tracker_alloc include/linux/netdevice.h:4375 [inline]
 netdev_hold include/linux/netdevice.h:4404 [inline]
 netdev_hold include/linux/netdevice.h:4399 [inline]
 inetdev_init+0x245/0x5a0 net/ipv4/devinet.c:286
 inetdev_event+0xc5f/0x18a0 net/ipv4/devinet.c:1590
 notifier_call_chain+0xbc/0x410 kernel/notifier.c:85
 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:2229
 call_netdevice_notifiers_extack net/core/dev.c:2267 [inline]
 call_netdevice_notifiers net/core/dev.c:2281 [inline]
 register_netdevice+0x182e/0x2270 net/core/dev.c:11332
 veth_newlink+0x316/0xa00 drivers/net/veth.c:1855
 rtnl_newlink_create net/core/rtnetlink.c:3833 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3950 [inline]
 rtnl_newlink+0xc45/0x2000 net/core/rtnetlink.c:4065
 rtnetlink_rcv_msg+0x95e/0xe90 net/core/rtnetlink.c:6954
 netlink_rcv_skb+0x158/0x420 net/netlink/af_netlink.c:2552

Memory state around the buggy address:
 ffff88802f70a180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88802f70a200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88802f70a280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                          ^
 ffff88802f70a300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88802f70a380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in instrument_atomic_read include/linux/instrumented.h:68 [inline]
BUG: KASAN: slab-use-after-free in _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
BUG: KASAN: slab-use-after-free in netif_device_present include/linux/netdevice.h:4601 [inline]
BUG: KASAN: slab-use-after-free in __ethtool_get_link_ksettings+0xa4/0x200 net/ethtool/ioctl.c:446
Read of size 8 at addr ffff88802f70a0a8 by task kworker/0:1/10

CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Tainted: G    B               syzkaller #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Workqueue: events smc_ib_port_event_work
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xcd/0x630 mm/kasan/report.c:482
 kasan_report+0xe0/0x110 mm/kasan/report.c:595
 check_region_inline mm/kasan/generic.c:194 [inline]
 kasan_check_range+0x100/0x1b0 mm/kasan/generic.c:200
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 netif_device_present include/linux/netdevice.h:4601 [inline]
 __ethtool_get_link_ksettings+0xa4/0x200 net/ethtool/ioctl.c:446
 __ethtool_get_link_ksettings+0x148/0x200 net/ethtool/ioctl.c:450
 ib_get_eth_speed+0x122/0xb50 drivers/infiniband/core/verbs.c:1996
 rxe_query_port+0x108/0x330 drivers/infiniband/sw/rxe/rxe_verbs.c:62
 __ib_query_port drivers/infiniband/core/device.c:2148 [inline]
 ib_query_port drivers/infiniband/core/device.c:2180 [inline]
 ib_query_port+0x441/0x8a0 drivers/infiniband/core/device.c:2170
 smc_ib_remember_port_attr net/smc/smc_ib.c:364 [inline]
 smc_ib_port_event_work+0x12f/0xbf0 net/smc/smc_ib.c:388
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3263
 process_scheduled_works kernel/workqueue.c:3346 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Allocated by task 11440:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:56
 kasan_save_track+0x14/0x30 mm/kasan/common.c:77
 poison_kmalloc_redzone mm/kasan/common.c:400 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:417
 kasan_kmalloc include/linux/kasan.h:262 [inline]
 __do_kmalloc_node mm/slub.c:5627 [inline]
 __kvmalloc_node_noprof+0x3a3/0x9c0 mm/slub.c:7081
 alloc_netdev_mqs+0xd7/0x1550 net/core/dev.c:11900
 rtnl_create_link+0xc08/0xf90 net/core/rtnetlink.c:3641
 rtnl_newlink_create net/core/rtnetlink.c:3823 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3950 [inline]
 rtnl_newlink+0xb69/0x2000 net/core/rtnetlink.c:4065
 rtnetlink_rcv_msg+0x95e/0xe90 net/core/rtnetlink.c:6954
 netlink_rcv_skb+0x158/0x420 net/netlink/af_netlink.c:2552
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x5aa/0x870 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x8c8/0xdd0 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 __sys_sendto+0x4a3/0x520 net/socket.c:2244
 __do_sys_sendto net/socket.c:2251 [inline]
 __se_sys_sendto net/socket.c:2247 [inline]
 __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2247
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 1322:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:56
 kasan_save_track+0x14/0x30 mm/kasan/common.c:77
 __kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:587
 kasan_save_free_info mm/kasan/kasan.h:406 [inline]
 poison_slab_object mm/kasan/common.c:252 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:284
 kasan_slab_free include/linux/kasan.h:234 [inline]
 slab_free_hook mm/slub.c:2523 [inline]
 slab_free mm/slub.c:6611 [inline]
 kfree+0x2b8/0x6d0 mm/slub.c:6818
 device_release+0xa4/0x240 drivers/base/core.c:2565
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x1e7/0x5a0 lib/kobject.c:737
 netdev_run_todo+0x7e9/0x1320 net/core/dev.c:11601
 default_device_exit_batch+0x858/0xaf0 net/core/dev.c:12822
 ops_exit_list net/core/net_namespace.c:205 [inline]
 ops_undo_list+0x363/0xab0 net/core/net_namespace.c:252
 cleanup_net+0x41b/0x8b0 net/core/net_namespace.c:695
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3263
 process_scheduled_works kernel/workqueue.c:3346 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

The buggy address belongs to the object at ffff88802f70a000
 which belongs to the cache kmalloc-cg-4k of size 4096
The buggy address is located 168 bytes inside of
 freed 4096-byte region [ffff88802f70a000, ffff88802f70b000)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2f708
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff8880327a1d01
anon flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88813ffb0500 0000000000000000 dead000000000001
raw: 0000000000000000 0000000000040004 00000000f5000000 ffff8880327a1d01
head: 00fff00000000040 ffff88813ffb0500 0000000000000000 dead000000000001
head: 0000000000000000 0000000000040004 00000000f5000000 ffff8880327a1d01
head: 00fff00000000003 ffffea0000bdc201 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5978, tgid 5978 (syz-executor), ts 177598196873, free_ts 177438999193
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1850
 prep_new_page mm/page_alloc.c:1858 [inline]
 get_page_from_freelist+0x10a3/0x3a30 mm/page_alloc.c:3884
 __alloc_frozen_pages_noprof+0x25f/0x2470 mm/page_alloc.c:5183
 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2416
 alloc_slab_page mm/slub.c:3039 [inline]
 allocate_slab mm/slub.c:3212 [inline]
 new_slab+0x24a/0x360 mm/slub.c:3266
 ___slab_alloc+0xdc4/0x1ae0 mm/slub.c:4636
 __slab_alloc.constprop.0+0x63/0x110 mm/slub.c:4755
 __slab_alloc_node mm/slub.c:4831 [inline]
 slab_alloc_node mm/slub.c:5253 [inline]
 __do_kmalloc_node mm/slub.c:5626 [inline]
 __kmalloc_noprof+0x501/0x880 mm/slub.c:5639
 kmalloc_noprof include/linux/slab.h:961 [inline]
 kzalloc_noprof include/linux/slab.h:1094 [inline]
 __register_sysctl_table+0xb3/0x1900 fs/proc/proc_sysctl.c:1379
 __addrconf_sysctl_register+0x1a2/0x360 net/ipv6/addrconf.c:7323
 addrconf_sysctl_register net/ipv6/addrconf.c:7371 [inline]
 addrconf_sysctl_register+0x15f/0x1f0 net/ipv6/addrconf.c:7360
 ipv6_add_dev+0xb31/0x15f0 net/ipv6/addrconf.c:460
 addrconf_notify+0x53e/0x19e0 net/ipv6/addrconf.c:3650
 notifier_call_chain+0xbc/0x410 kernel/notifier.c:85
 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:2229
 call_netdevice_notifiers_extack net/core/dev.c:2267 [inline]
 call_netdevice_notifiers net/core/dev.c:2281 [inline]
 register_netdevice+0x182e/0x2270 net/core/dev.c:11332
page last free pid 5962 tgid 5962 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1394 [inline]
 __free_frozen_pages+0x7df/0x1160 mm/page_alloc.c:2906
 discard_slab mm/slub.c:3310 [inline]
 __put_partials+0x130/0x170 mm/slub.c:3857
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4d/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:352
 kasan_slab_alloc include/linux/kasan.h:252 [inline]
 slab_post_alloc_hook mm/slub.c:4955 [inline]
 slab_alloc_node mm/slub.c:5265 [inline]
 __kmalloc_cache_noprof+0x274/0x780 mm/slub.c:5743
 kmalloc_noprof include/linux/slab.h:957 [inline]
 kzalloc_noprof include/linux/slab.h:1094 [inline]
 ref_tracker_alloc+0x18e/0x5b0 lib/ref_tracker.c:271
 __netdev_tracker_alloc include/linux/netdevice.h:4375 [inline]
 netdev_hold include/linux/netdevice.h:4404 [inline]
 netdev_hold include/linux/netdevice.h:4399 [inline]
 inetdev_init+0x245/0x5a0 net/ipv4/devinet.c:286
 inetdev_event+0xc5f/0x18a0 net/ipv4/devinet.c:1590
 notifier_call_chain+0xbc/0x410 kernel/notifier.c:85
 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:2229
 call_netdevice_notifiers_extack net/core/dev.c:2267 [inline]
 call_netdevice_notifiers net/core/dev.c:2281 [inline]
 register_netdevice+0x182e/0x2270 net/core/dev.c:11332
 veth_newlink+0x316/0xa00 drivers/net/veth.c:1855
 rtnl_newlink_create net/core/rtnetlink.c:3833 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3950 [inline]
 rtnl_newlink+0xc45/0x2000 net/core/rtnetlink.c:4065
 rtnetlink_rcv_msg+0x95e/0xe90 net/core/rtnetlink.c:6954
 netlink_rcv_skb+0x158/0x420 net/netlink/af_netlink.c:2552

Memory state around the buggy address:
 ffff88802f709f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802f70a000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88802f70a080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                  ^
 ffff88802f70a100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88802f70a180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in constant_test_bit arch/x86/include/asm/bitops.h:202 [inline]
BUG: KASAN: slab-use-after-free in arch_test_bit arch/x86/include/asm/bitops.h:232 [inline]
BUG: KASAN: slab-use-after-free in _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:142 [inline]
BUG: KASAN: slab-use-after-free in netif_device_present include/linux/netdevice.h:4601 [inline]
BUG: KASAN: slab-use-after-free in __ethtool_get_link_ksettings+0x1cc/0x200 net/ethtool/ioctl.c:446
Read of size 8 at addr ffff88802f70a0a8 by task kworker/0:1/10

CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Tainted: G    B               syzkaller #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Workqueue: events smc_ib_port_event_work
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xcd/0x630 mm/kasan/report.c:482
 kasan_report+0xe0/0x110 mm/kasan/report.c:595
 constant_test_bit arch/x86/include/asm/bitops.h:202 [inline]
 arch_test_bit arch/x86/include/asm/bitops.h:232 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:142 [inline]
 netif_device_present include/linux/netdevice.h:4601 [inline]
 __ethtool_get_link_ksettings+0x1cc/0x200 net/ethtool/ioctl.c:446
 __ethtool_get_link_ksettings+0x148/0x200 net/ethtool/ioctl.c:450
 ib_get_eth_speed+0x122/0xb50 drivers/infiniband/core/verbs.c:1996
 rxe_query_port+0x108/0x330 drivers/infiniband/sw/rxe/rxe_verbs.c:62
 __ib_query_port drivers/infiniband/core/device.c:2148 [inline]
 ib_query_port drivers/infiniband/core/device.c:2180 [inline]
 ib_query_port+0x441/0x8a0 drivers/infiniband/core/device.c:2170
 smc_ib_remember_port_attr net/smc/smc_ib.c:364 [inline]
 smc_ib_port_event_work+0x12f/0xbf0 net/smc/smc_ib.c:388
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3263
 process_scheduled_works kernel/workqueue.c:3346 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Allocated by task 11440:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:56
 kasan_save_track+0x14/0x30 mm/kasan/common.c:77
 poison_kmalloc_redzone mm/kasan/common.c:400 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:417
 kasan_kmalloc include/linux/kasan.h:262 [inline]
 __do_kmalloc_node mm/slub.c:5627 [inline]
 __kvmalloc_node_noprof+0x3a3/0x9c0 mm/slub.c:7081
 alloc_netdev_mqs+0xd7/0x1550 net/core/dev.c:11900
 rtnl_create_link+0xc08/0xf90 net/core/rtnetlink.c:3641
 rtnl_newlink_create net/core/rtnetlink.c:3823 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3950 [inline]
 rtnl_newlink+0xb69/0x2000 net/core/rtnetlink.c:4065
 rtnetlink_rcv_msg+0x95e/0xe90 net/core/rtnetlink.c:6954
 netlink_rcv_skb+0x158/0x420 net/netlink/af_netlink.c:2552
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x5aa/0x870 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x8c8/0xdd0 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 __sys_sendto+0x4a3/0x520 net/socket.c:2244
 __do_sys_sendto net/socket.c:2251 [inline]
 __se_sys_sendto net/socket.c:2247 [inline]
 __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2247
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 1322:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:56
 kasan_save_track+0x14/0x30 mm/kasan/common.c:77
 __kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:587
 kasan_save_free_info mm/kasan/kasan.h:406 [inline]
 poison_slab_object mm/kasan/common.c:252 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:284
 kasan_slab_free include/linux/kasan.h:234 [inline]
 slab_free_hook mm/slub.c:2523 [inline]
 slab_free mm/slub.c:6611 [inline]
 kfree+0x2b8/0x6d0 mm/slub.c:6818
 device_release+0xa4/0x240 drivers/base/core.c:2565
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x1e7/0x5a0 lib/kobject.c:737
 netdev_run_todo+0x7e9/0x1320 net/core/dev.c:11601
 default_device_exit_batch+0x858/0xaf0 net/core/dev.c:12822
 ops_exit_list net/core/net_namespace.c:205 [inline]
 ops_undo_list+0x363/0xab0 net/core/net_namespace.c:252
 cleanup_net+0x41b/0x8b0 net/core/net_namespace.c:695
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3263
 process_scheduled_works kernel/workqueue.c:3346 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

The buggy address belongs to the object at ffff88802f70a000
 which belongs to the cache kmalloc-cg-4k of size 4096
The buggy address is located 168 bytes inside of
 freed 4096-byte region [ffff88802f70a000, ffff88802f70b000)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2f708
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff8880327a1d01
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88813ffb0500 ffffea0001e8c800 dead000000000002
raw: 0000000000000000 0000000000040004 00000000f5000000 ffff8880327a1d01
head: 00fff00000000040 ffff88813ffb0500 ffffea0001e8c800 dead000000000002
head: 0000000000000000 0000000000040004 00000000f5000000 ffff8880327a1d01
head: 00fff00000000003 ffffea0000bdc201 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5978, tgid 5978 (syz-executor), ts 177598196873, free_ts 177438999193
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1850
 prep_new_page mm/page_alloc.c:1858 [inline]
 get_page_from_freelist+0x10a3/0x3a30 mm/page_alloc.c:3884
 __alloc_frozen_pages_noprof+0x25f/0x2470 mm/page_alloc.c:5183
 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2416
 alloc_slab_page mm/slub.c:3039 [inline]
 allocate_slab mm/slub.c:3212 [inline]
 new_slab+0x24a/0x360 mm/slub.c:3266
 ___slab_alloc+0xdc4/0x1ae0 mm/slub.c:4636
 __slab_alloc.constprop.0+0x63/0x110 mm/slub.c:4755
 __slab_alloc_node mm/slub.c:4831 [inline]
 slab_alloc_node mm/slub.c:5253 [inline]
 __do_kmalloc_node mm/slub.c:5626 [inline]
 __kmalloc_noprof+0x501/0x880 mm/slub.c:5639
 kmalloc_noprof include/linux/slab.h:961 [inline]
 kzalloc_noprof include/linux/slab.h:1094 [inline]
 __register_sysctl_table+0xb3/0x1900 fs/proc/proc_sysctl.c:1379
 __addrconf_sysctl_register+0x1a2/0x360 net/ipv6/addrconf.c:7323
 addrconf_sysctl_register net/ipv6/addrconf.c:7371 [inline]
 addrconf_sysctl_register+0x15f/0x1f0 net/ipv6/addrconf.c:7360
 ipv6_add_dev+0xb31/0x15f0 net/ipv6/addrconf.c:460
 addrconf_notify+0x53e/0x19e0 net/ipv6/addrconf.c:3650
 notifier_call_chain+0xbc/0x410 kernel/notifier.c:85
 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:2229
 call_netdevice_notifiers_extack net/core/dev.c:2267 [inline]
 call_netdevice_notifiers net/core/dev.c:2281 [inline]
 register_netdevice+0x182e/0x2270 net/core/dev.c:11332
page last free pid 5962 tgid 5962 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1394 [inline]
 __free_frozen_pages+0x7df/0x1160 mm/page_alloc.c:2906
 discard_slab mm/slub.c:3310 [inline]
 __put_partials+0x130/0x170 mm/slub.c:3857
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4d/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:352
 kasan_slab_alloc include/linux/kasan.h:252 [inline]
 slab_post_alloc_hook mm/slub.c:4955 [inline]
 slab_alloc_node mm/slub.c:5265 [inline]
 __kmalloc_cache_noprof+0x274/0x780 mm/slub.c:5743
 kmalloc_noprof include/linux/slab.h:957 [inline]
 kzalloc_noprof include/linux/slab.h:1094 [inline]
 ref_tracker_alloc+0x18e/0x5b0 lib/ref_tracker.c:271
 __netdev_tracker_alloc include/linux/netdevice.h:4375 [inline]
 netdev_hold include/linux/netdevice.h:4404 [inline]
 netdev_hold include/linux/netdevice.h:4399 [inline]
 inetdev_init+0x245/0x5a0 net/ipv4/devinet.c:286
 inetdev_event+0xc5f/0x18a0 net/ipv4/devinet.c:1590
 notifier_call_chain+0xbc/0x410 kernel/notifier.c:85
 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:2229
 call_netdevice_notifiers_extack net/core/dev.c:2267 [inline]
 call_netdevice_notifiers net/core/dev.c:2281 [inline]
 register_netdevice+0x182e/0x2270 net/core/dev.c:11332
 veth_newlink+0x316/0xa00 drivers/net/veth.c:1855
 rtnl_newlink_create net/core/rtnetlink.c:3833 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3950 [inline]
 rtnl_newlink+0xc45/0x2000 net/core/rtnetlink.c:4065
 rtnetlink_rcv_msg+0x95e/0xe90 net/core/rtnetlink.c:6954
 netlink_rcv_skb+0x158/0x420 net/netlink/af_netlink.c:2552

Memory state around the buggy address:
 ffff88802f709f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88802f70a000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88802f70a080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                  ^
 ffff88802f70a100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88802f70a180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
==================================================================
BUG: KASAN: slab-use-after-free in __ethtool_get_link_ksettings+0x1e3/0x200 net/ethtool/ioctl.c:450
Read of size 8 at addr ffff88802f70a2e8 by task kworker/0:1/10

CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Tainted: G    B               syzkaller #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Workqueue: events smc_ib_port_event_work
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xcd/0x630 mm/kasan/report.c:482
 kasan_report+0xe0/0x110 mm/kasan/report.c:595
 __ethtool_get_link_ksettings+0x1e3/0x200 net/ethtool/ioctl.c:450
 __ethtool_get_link_ksettings+0x148/0x200 net/ethtool/ioctl.c:450
 ib_get_eth_speed+0x122/0xb50 drivers/infiniband/core/verbs.c:1996
 rxe_query_port+0x108/0x330 drivers/infiniband/sw/rxe/rxe_verbs.c:62
 __ib_query_port drivers/infiniband/core/device.c:2148 [inline]
 ib_query_port drivers/infiniband/core/device.c:2180 [inline]
 ib_query_port+0x441/0x8a0 drivers/infiniband/core/device.c:2170
 smc_ib_remember_port_attr net/smc/smc_ib.c:364 [inline]
 smc_ib_port_event_work+0x12f/0xbf0 net/smc/smc_ib.c:388
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3263
 process_scheduled_works kernel/workqueue.c:3346 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Allocated by task 11440:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:56
 kasan_save_track+0x14/0x30 mm/kasan/common.c:77
 poison_kmalloc_redzone mm/kasan/common.c:400 [inline]
 __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:417
 kasan_kmalloc include/linux/kasan.h:262 [inline]
 __do_kmalloc_node mm/slub.c:5627 [inline]
 __kvmalloc_node_noprof+0x3a3/0x9c0 mm/slub.c:7081
 alloc_netdev_mqs+0xd7/0x1550 net/core/dev.c:11900
 rtnl_create_link+0xc08/0xf90 net/core/rtnetlink.c:3641
 rtnl_newlink_create net/core/rtnetlink.c:3823 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3950 [inline]
 rtnl_newlink+0xb69/0x2000 net/core/rtnetlink.c:4065
 rtnetlink_rcv_msg+0x95e/0xe90 net/core/rtnetlink.c:6954
 netlink_rcv_skb+0x158/0x420 net/netlink/af_netlink.c:2552
 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]
 netlink_unicast+0x5aa/0x870 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x8c8/0xdd0 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 __sys_sendto+0x4a3/0x520 net/socket.c:2244
 __do_sys_sendto net/socket.c:2251 [inline]
 __se_sys_sendto net/socket.c:2247 [inline]
 __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2247
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 1322:
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:56
 kasan_save_track+0x14/0x30 mm/kasan/common.c:77
 __kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:587
 kasan_save_free_info mm/kasan/kasan.h:406 [inline]
 poison_slab_object mm/kasan/common.c:252 [inline]
 __kasan_slab_free+0x5f/0x80 mm/kasan/common.c:284
 kasan_slab_free include/linux/kasan.h:234 [inline]
 slab_free_hook mm/slub.c:2523 [inline]
 slab_free mm/slub.c:6611 [inline]
 kfree+0x2b8/0x6d0 mm/slub.c:6818
 device_release+0xa4/0x240 drivers/base/core.c:2565
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x1e7/0x5a0 lib/kobject.c:737
 netdev_run_todo+0x7e9/0x1320 net/core/dev.c:11601
 default_device_exit_batch+0x858/0xaf0 net/core/dev.c:12822
 ops_exit_list net/core/net_namespace.c:205 [inline]
 ops_undo_list+0x363/0xab0 net/core/net_namespace.c:252
 cleanup_net+0x41b/0x8b0 net/core/net_namespace.c:695
 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3263
 process_scheduled_works kernel/workqueue.c:3346 [inline]
 worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

The buggy address belongs to the object at ffff88802f70a000
 which belongs to the cache kmalloc-cg-4k of size 4096
The buggy address is located 744 bytes inside of
 freed 4096-byte region [ffff88802f70a000, ffff88802f70b000)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2f708
head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
memcg:ffff8880327a1d01
flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000040 ffff88813ffb0500 ffffea0001e8c800 dead000000000002
raw: 0000000000000000 0000000000040004 00000000f5000000 ffff8880327a1d01
head: 00fff00000000040 ffff88813ffb0500 ffffea0001e8c800 dead000000000002
head: 0000000000000000 0000000000040004 00000000f5000000 ffff8880327a1d01
head: 00fff00000000003 ffffea0000bdc201 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5978, tgid 5978 (syz-executor), ts 177598196873, free_ts 177438999193
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1850
 prep_new_page mm/page_alloc.c:1858 [inline]
 get_page_from_freelist+0x10a3/0x3a30 mm/page_alloc.c:3884
 __alloc_frozen_pages_noprof+0x25f/0x2470 mm/page_alloc.c:5183
 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2416
 alloc_slab_page mm/slub.c:3039 [inline]
 allocate_slab mm/slub.c:3212 [inline]
 new_slab+0x24a/0x360 mm/slub.c:3266
 ___slab_alloc+0xdc4/0x1ae0 mm/slub.c:4636
 __slab_alloc.constprop.0+0x63/0x110 mm/slub.c:4755
 __slab_alloc_node mm/slub.c:4831 [inline]
 slab_alloc_node mm/slub.c:5253 [inline]
 __do_kmalloc_node mm/slub.c:5626 [inline]
 __kmalloc_noprof+0x501/0x880 mm/slub.c:5639
 kmalloc_noprof include/linux/slab.h:961 [inline]
 kzalloc_noprof include/linux/slab.h:1094 [inline]
 __register_sysctl_table+0xb3/0x1900 fs/proc/proc_sysctl.c:1379
 __addrconf_sysctl_register+0x1a2/0x360 net/ipv6/addrconf.c:7323
 addrconf_sysctl_register net/ipv6/addrconf.c:7371 [inline]
 addrconf_sysctl_register+0x15f/0x1f0 net/ipv6/addrconf.c:7360
 ipv6_add_dev+0xb31/0x15f0 net/ipv6/addrconf.c:460
 addrconf_notify+0x53e/0x19e0 net/ipv6/addrconf.c:3650
 notifier_call_chain+0xbc/0x410 kernel/notifier.c:85
 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:2229
 call_netdevice_notifiers_extack net/core/dev.c:2267 [inline]
 call_netdevice_notifiers net/core/dev.c:2281 [inline]
 register_netdevice+0x182e/0x2270 net/core/dev.c:11332
page last free pid 5962 tgid 5962 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1394 [inline]
 __free_frozen_pages+0x7df/0x1160 mm/page_alloc.c:2906
 discard_slab mm/slub.c:3310 [inline]
 __put_partials+0x130/0x170 mm/slub.c:3857
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4d/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:352
 kasan_slab_alloc include/linux/kasan.h:252 [inline]
 slab_post_alloc_hook mm/slub.c:4955 [inline]
 slab_alloc_node mm/slub.c:5265 [inline]
 __kmalloc_cache_noprof+0x274/0x780 mm/slub.c:5743
 kmalloc_noprof include/linux/slab.h:957 [inline]
 kzalloc_noprof include/linux/slab.h:1094 [inline]
 ref_tracker_alloc+0x18e/0x5b0 lib/ref_tracker.c:271
 __netdev_tracker_alloc include/linux/netdevice.h:4375 [inline]
 netdev_hold include/linux/netdevice.h:4404 [inline]
 netdev_hold include/linux/netdevice.h:4399 [inline]
 inetdev_init+0x245/0x5a0 net/ipv4/devinet.c:286
 inetdev_event+0xc5f/0x18a0 net/ipv4/devinet.c:1590
 notifier_call_chain+0xbc/0x410 kernel/notifier.c:85
 call_netdevice_notifiers_info+0xbe/0x140 net/core/dev.c:2229
 call_netdevice_notifiers_extack net/core/dev.c:2267 [inline]
 call_netdevice_notifiers net/core/dev.c:2281 [inline]
 register_netdevice+0x182e/0x2270 net/core/dev.c:11332
 veth_newlink+0x316/0xa00 drivers/net/veth.c:1855
 rtnl_newlink_create net/core/rtnetlink.c:3833 [inline]
 __rtnl_newlink net/core/rtnetlink.c:3950 [inline]
 rtnl_newlink+0xc45/0x2000 net/core/rtnetlink.c:4065
 rtnetlink_rcv_msg+0x95e/0xe90 net/core/rtnetlink.c:6954
 netlink_rcv_skb+0x158/0x420 net/netlink/af_netlink.c:2552

Memory state around the buggy address:
 ffff88802f70a180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88802f70a200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88802f70a280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                          ^
 ffff88802f70a300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88802f70a380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================

Crashes (14902):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/10/16 16:49 upstream 7ea30958b305 19568248 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/08/21 17:09 upstream 038d61fd6422 0b9605c8 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/10/12 18:36 upstream 67029a49db6c ff1712fe .config console log report syz / log [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/09/04 12:37 upstream b9a10f876409 d291dd2d .config console log report syz / log [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/05 12:26 bpf 44e8f13f07cf a6c9c731 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/02 10:51 net d7d2fcf7ae31 2c50b6a9 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/10/31 06:54 bpf 2cbb259ec4f8 2c50b6a9 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/10/28 21:11 bpf 8ce93aabbf75 fd2207e7 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/10/25 21:32 net 84a905290cb4 c0460fcd .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/10/23 12:05 bpf 881a9c9cb785 c0460fcd .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/10/23 02:11 net d63f0391d6c7 c0460fcd .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/10/18 20:53 bpf a1e83d4c0361 1c8c8cd8 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/10/14 07:17 bpf 3a8660878839 b6605ba8 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/10/11 15:18 net f3426ac54c42 ff1712fe .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/09/30 15:42 net 2aff4420efc2 65a0eece .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/09/29 08:33 net 012ea489aeda 001c9061 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/09/28 15:02 bpf bf40f4b87761 001c9061 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/09/18 19:40 net 4c05c7ed880f e2beed91 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/09/16 20:00 bpf f36caa7c14f4 e2beed91 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/09/10 07:38 bpf 3753d4f6d9d7 fdeaa69b .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/09/09 12:12 net 1dbfb0363224 d291dd2d .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/09/01 02:59 net 788bc43d8330 807a3b61 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/08/23 21:37 net ec79003c5f9d bf27483f .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2024/10/20 09:25 net 07d6bf634bc8 cd6fc0a3 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2024/10/02 22:08 net c4a14f6d9d17 a4c7fd36 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2024/09/27 18:25 net d505d3593b52 2b1784d6 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/02 19:42 bpf-next ab01bfad61b0 2c50b6a9 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/01 05:20 bpf-next ab01bfad61b0 2c50b6a9 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/10/29 12:36 bpf-next 54c134f379ee fd2207e7 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/10/27 01:54 net-next bfe62db5422b c0460fcd .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/10/13 23:07 net-next 18a7e218cfcd b6605ba8 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/09/21 22:33 bpf-next 5a427fddec5e 67c37560 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/09/19 15:14 bpf-next 8cd189e414bb 67c37560 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/09/17 00:10 net-next 29fa7f9e5adf e2beed91 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/09/08 14:05 bpf-next e12873ee856f d291dd2d .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/09/07 08:16 net-next c6142e1913de d291dd2d .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/08/23 18:56 net-next b1c92cdf5af3 bf27483f .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/10/23 03:33 linux-next aaa9c3550b60 c0460fcd .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/09/10 11:44 linux-next 5f540c4aade9 fdeaa69b .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/09/01 14:06 linux-next 7fa4d8dc380f 807a3b61 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/08/21 21:49 linux-next 7fa4d8dc380f 0b9605c8 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/10/06 06:59 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci bf45a62baffc 49379ee0 .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/09/11 08:47 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci c199ef1fa61a fdeaa69b .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/09/07 11:30 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci b320789d6883 d291dd2d .config console log report syz / log [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/06 17:18 upstream dc77806cf3b4 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/06 10:20 upstream dc77806cf3b4 a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/06 08:49 upstream dc77806cf3b4 a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/06 04:16 upstream dc77806cf3b4 a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/05 16:26 upstream 1c353dc8d962 a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/05 14:39 upstream 1c353dc8d962 a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/05 13:31 upstream 1c353dc8d962 a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/05 09:49 upstream c9cfc122f037 a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/04 23:17 upstream c9cfc122f037 a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/04 19:40 upstream c9cfc122f037 686bf657 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/03 20:22 upstream 6146a0f1dfae 2c50b6a9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2024/03/13 22:25 upstream 61387b8dcf1d f919f202 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/10/27 20:29 upstream dcb6fa37fd7b fd2207e7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/05 19:04 upstream 284922f4c563 a6c9c731 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/05 02:42 upstream c9cfc122f037 a6c9c731 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/04 20:40 upstream c9cfc122f037 a6c9c731 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/04 17:41 upstream c9cfc122f037 e6c64ba8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/04 15:07 upstream c9cfc122f037 e6c64ba8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/04 01:28 upstream 8bb886cb8f3a e6c64ba8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/03 21:28 upstream 6146a0f1dfae e6c64ba8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/03 21:28 upstream 6146a0f1dfae e6c64ba8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/09/25 22:44 upstream bf40f4b87761 0abd0691 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm64 KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/09/10 05:48 upstream 9dd1835ecda5 fdeaa69b .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm64-compat KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/09/09 07:21 upstream f777d1112ee5 d291dd2d .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm64-mte KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2024/01/16 11:52 upstream 052d534373b7 2a7bcc7f .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm64-compat KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2024/01/14 06:32 upstream 052d534373b7 551587c1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm64-compat KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/06 14:07 bpf e427054ae7bc a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/06 12:48 bpf e427054ae7bc a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/05 17:27 bpf 44e8f13f07cf a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/05 08:44 net e120f46768d9 a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/05 07:11 net e120f46768d9 a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/05 06:05 bpf 44e8f13f07cf a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/05 01:40 net e120f46768d9 a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/05 00:59 net e120f46768d9 a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/04 22:09 bpf 156c75f596c9 a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/04 12:29 net 99ae0675d73b 686bf657 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/04 07:02 net 99ae0675d73b 686bf657 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/04 05:51 net 99ae0675d73b 686bf657 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/04 01:59 net d7d2fcf7ae31 686bf657 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/03 23:51 net d7d2fcf7ae31 686bf657 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/03 22:44 net d7d2fcf7ae31 2c50b6a9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/06 19:12 net-next 13068e9d5726 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/06 18:09 bpf-next b54a8e130c02 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/06 15:58 bpf-next b54a8e130c02 4e1406b4 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/06 06:31 bpf-next b54a8e130c02 a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/06 05:13 net-next c79a02252457 a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/06 01:21 bpf-next 4cb4897bb49a a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/05 19:03 bpf-next 4cb4897bb49a a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/05 11:11 bpf-next b3387b312226 a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/05 04:56 bpf-next b3387b312226 a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/04 19:09 bpf-next 11369e6e337a 686bf657 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/04 16:40 bpf-next 11369e6e337a 686bf657 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/04 13:56 bpf-next 11369e6e337a 686bf657 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/04 10:09 bpf-next e6e10c51fb17 686bf657 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/04 08:58 bpf-next e6e10c51fb17 686bf657 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/04 08:20 bpf-next e6e10c51fb17 686bf657 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/04 04:05 bpf-next e6e10c51fb17 686bf657 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-bpf-next-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/03 19:18 net-next 01cc760632b8 2c50b6a9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/06 00:01 linux-next 84d39fb9d529 a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/05 22:24 linux-next 84d39fb9d529 a6c9c731 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/11/02 21:05 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci dcb6fa37fd7b 2c50b6a9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/10/06 03:47 git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git for-next 68247d45c045 49379ee0 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-riscv64 KASAN: slab-use-after-free Read in __ethtool_get_link_ksettings
2025/08/16 12:25 upstream dfd4b508c8c6 1804e95e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root KFENCE: use-after-free read in __ethtool_get_link_ksettings
2025/10/11 02:25 upstream 917167ed1211 ff1712fe .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream KASAN: use-after-free Read in __ethtool_get_link_ksettings
2025/05/13 04:13 upstream 627277ba7c23 f6671af7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm64-mte KASAN: invalid-access Read in __ethtool_get_link_ksettings
2025/10/16 16:37 net 8d93ff40d49d 19568248 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce general protection fault in __ethtool_get_link_ksettings
2025/06/30 22:51 net 60f7f4afaf6d 6e83b42d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce KFENCE: use-after-free in __ethtool_get_link_ksettings
2025/10/29 09:07 net-next a8abe8e210c1 fd2207e7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce KASAN: slab-out-of-bounds Read in __ethtool_get_link_ksettings
* Struck through repros no longer work on HEAD.