syzbot


WARNING in rxe_pool_cleanup

Status: upstream: reported on 2025/02/06 21:22
Reported-by: syzbot+8f049ad0f2f7833bf29b@syzkaller.appspotmail.com
First crash: 156d, last: 7d10h
Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.6 WARNING in rxe_pool_cleanup -1 3 16d 22d 0/2 upstream: reported on 2025/06/20 15:15
upstream WARNING in rxe_pool_cleanup rdma -1 C 364 2d06h 426d 0/29 upstream: reported C repro on 2024/05/13 02:22

Sample crash report:
smc: removing ib device syz0
------------[ cut here ]------------
WARNING: CPU: 1 PID: 11945 at drivers/infiniband/sw/rxe/rxe_pool.c:116 rxe_pool_cleanup+0x3e/0x50 drivers/infiniband/sw/rxe/rxe_pool.c:116
Modules linked in:
CPU: 1 PID: 11945 Comm: syz.1.2128 Not tainted 6.1.142-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:rxe_pool_cleanup+0x3e/0x50 drivers/infiniband/sw/rxe/rxe_pool.c:116
Code: 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 d4 5a 4c fa 48 83 3b 00 75 07 e8 19 df fa f9 5b c3 e8 12 df fa f9 <0f> 0b 5b c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 55 41 57 41
RSP: 0018:ffffc9000518f1e8 EFLAGS: 00010246
RAX: ffffffff8785f86e RBX: ffff88807ce11298 RCX: 0000000000080000
RDX: ffffc90010054000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: 0000000000000002 R08: dffffc0000000000 R09: ffffed100f9c20e9
R10: ffffed100f9c20e9 R11: 1ffff1100f9c20e8 R12: dffffc0000000000
R13: 1ffff92000a31e58 R14: ffffffff87847e60 R15: dffffc0000000000
FS:  00007f7c221396c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000001e2030 CR3: 000000002f818000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 rxe_dealloc+0x2f/0x100 drivers/infiniband/sw/rxe/rxe.c:24
 ib_dealloc_device+0x4a/0x1f0 drivers/infiniband/core/device.c:666
 __ib_unregister_device+0x120/0x170 drivers/infiniband/core/device.c:1501
 ib_unregister_device_and_put+0xb4/0xf0 drivers/infiniband/core/device.c:1548
 nldev_dellink+0x2ab/0x300 drivers/infiniband/core/nldev.c:1749
 rdma_nl_rcv_msg drivers/infiniband/core/netlink.c:-1 [inline]
 rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline]
 rdma_nl_rcv+0x6a9/0x990 drivers/infiniband/core/netlink.c:259
 netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
 netlink_unicast+0x74c/0x8c0 net/netlink/af_netlink.c:1337
 netlink_sendmsg+0x89e/0xbc0 net/netlink/af_netlink.c:1859
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 ____sys_sendmsg+0x59b/0x970 net/socket.c:2519
 ___sys_sendmsg+0x21c/0x290 net/socket.c:2573
 __sys_sendmsg net/socket.c:2602 [inline]
 __do_sys_sendmsg net/socket.c:2611 [inline]
 __se_sys_sendmsg+0x19e/0x270 net/socket.c:2609
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f7c2138e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7c22139038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f7c215b6160 RCX: 00007f7c2138e929
RDX: 0000000000000000 RSI: 00002000000002c0 RDI: 000000000000000b
RBP: 00007f7c21410b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f7c215b6160 R15: 00007fffbfa31198
 </TASK>

Crashes (9):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/07/06 03:21 linux-6.1.y 7e69c33e4858 4f67c4ae .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in rxe_pool_cleanup
2025/06/17 00:15 linux-6.1.y 58485ff1a74f d1716036 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in rxe_pool_cleanup
2025/05/20 04:34 linux-6.1.y 325285d9fc86 b84f0537 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in rxe_pool_cleanup
2025/04/28 04:54 linux-6.1.y 535ec20c5027 c6b4fb39 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in rxe_pool_cleanup
2025/04/26 06:03 linux-6.1.y 535ec20c5027 c6b4fb39 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in rxe_pool_cleanup
2025/04/24 00:58 linux-6.1.y 420102835862 73a168d0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in rxe_pool_cleanup
2025/04/19 08:56 linux-6.1.y 420102835862 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in rxe_pool_cleanup
2025/04/15 00:06 linux-6.1.y 420102835862 0bd6db41 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in rxe_pool_cleanup
2025/02/06 21:22 linux-6.1.y 0cbb5f65e52f 8002dd28 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in rxe_pool_cleanup
* Struck through repros no longer work on HEAD.