WARNING in kvfree_call

Title	Replies (including bot)	Last reply
[syzbot] [lsm?] [net?] WARNING in kvfree_call_rcu	4 (8)	2025/07/11 01:38

Title

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[syzbot] [lsm?] [net?] WARNING in kvfree_call_rcu

4 (8)

2025/07/11 01:38


Created	Duration	User	Patch	Repo	Result
2025/07/10 23:09	32m	hdanton@sina.com	patch	git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci	report log
2025/07/08 23:19	34m	kuniyu@google.com	patch	git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci	OK log
2025/07/08 22:41	11m	kuniyu@google.com	patch	git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci	error
2025/07/08 02:11	29m	kuniyu@google.com	patch	git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci	OK log

------------[ cut here ]------------ ODEBUG: activate active (active state 1) object: 000000006921da73 object type: rcu_head hint: 0x0 WARNING: CPU: 0 PID: 6718 at lib/debugobjects.c:615 debug_print_object lib/debugobjects.c:612 [inline] WARNING: CPU: 0 PID: 6718 at lib/debugobjects.c:615 debug_object_activate+0x344/0x460 lib/debugobjects.c:842 Modules linked in: CPU: 0 UID: 0 PID: 6718 Comm: syz.0.17 Not tainted 6.16.0-rc4-syzkaller-g7482bb149b9f #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : debug_print_object lib/debugobjects.c:612 [inline] pc : debug_object_activate+0x344/0x460 lib/debugobjects.c:842 lr : debug_print_object lib/debugobjects.c:612 [inline] lr : debug_object_activate+0x344/0x460 lib/debugobjects.c:842 sp : ffff8000a03a76d0 x29: ffff8000a03a76d0 x28: ffff8000976d7000 x27: dfff800000000000 x26: ffff80008afc2480 x25: 0000000000000001 x24: ffff8000891ac9a0 x23: 0000000000000003 x22: ffff80008b539420 x21: 0000000000000000 x20: ffff80008afc2480 x19: ffff8000891ac9a0 x18: 00000000ffffffff x17: 3761643132393630 x16: ffff80008ae642c8 x15: ffff700011ede14c x14: 1ffff00011ede14c x13: 0000000000000004 x12: ffffffffffffffff x11: ffff700011ede14c x10: 0000000000ff0100 x9 : 5fa3c1ffaf0ff000 x8 : 5fa3c1ffaf0ff000 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff8000a03a7018 x4 : ffff80008f766c20 x3 : ffff80008054d360 x2 : 0000000000000000 x1 : 0000000000000201 x0 : 0000000000000000 Call trace: debug_print_object lib/debugobjects.c:612 [inline] (P) debug_object_activate+0x344/0x460 lib/debugobjects.c:842 (P) debug_rcu_head_queue kernel/rcu/rcu.h:236 [inline] kvfree_call_rcu+0x4c/0x3f0 mm/slab_common.c:1953 cipso_v4_sock_setattr+0x2f0/0x3f4 net/ipv4/cipso_ipv4.c:1914 netlbl_sock_setattr+0x240/0x334 net/netlabel/netlabel_kapi.c:1000 smack_netlbl_add+0xa8/0x158 security/smack/smack_lsm.c:2581 smack_inode_setsecurity+0x378/0x430 security/smack/smack_lsm.c:2912 security_inode_setsecurity+0x118/0x3c0 security/security.c:2706 __vfs_setxattr_noperm+0x174/0x5c4 fs/xattr.c:251 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:295 vfs_setxattr+0x158/0x2ac fs/xattr.c:321 do_setxattr fs/xattr.c:636 [inline] file_setxattr+0x1b8/0x294 fs/xattr.c:646 path_setxattrat+0x2ac/0x320 fs/xattr.c:711 __do_sys_fsetxattr fs/xattr.c:761 [inline] __se_sys_fsetxattr fs/xattr.c:758 [inline] __arm64_sys_fsetxattr+0xc0/0xdc fs/xattr.c:758 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x180 arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 739 hardirqs last enabled at (738): [<ffff80008055484c>] __up_console_sem kernel/printk/printk.c:344 [inline] hardirqs last enabled at (738): [<ffff80008055484c>] __console_unlock+0x70/0xc4 kernel/printk/printk.c:2885 hardirqs last disabled at (739): [<ffff80008aef73d4>] el1_brk64+0x1c/0x48 arch/arm64/kernel/entry-common.c:574 softirqs last enabled at (668): [<ffff8000891992e0>] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (668): [<ffff8000891992e0>] release_sock+0x14c/0x1ac net/core/sock.c:3776 softirqs last disabled at (712): [<ffff800082c8970c>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ ODEBUG: active_state active (active state 1) object: 000000006921da73 object type: rcu_head hint: 0x0 WARNING: CPU: 0 PID: 6718 at lib/debugobjects.c:615 debug_print_object lib/debugobjects.c:612 [inline] WARNING: CPU: 0 PID: 6718 at lib/debugobjects.c:615 debug_object_active_state+0x28c/0x350 lib/debugobjects.c:1064 Modules linked in: CPU: 0 UID: 0 PID: 6718 Comm: syz.0.17 Tainted: G W 6.16.0-rc4-syzkaller-g7482bb149b9f #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : debug_print_object lib/debugobjects.c:612 [inline] pc : debug_object_active_state+0x28c/0x350 lib/debugobjects.c:1064 lr : debug_print_object lib/debugobjects.c:612 [inline] lr : debug_object_active_state+0x28c/0x350 lib/debugobjects.c:1064 sp : ffff8000a03a76c0 x29: ffff8000a03a76d0 x28: ffff80008f671000 x27: dfff800000000000 x26: 0000000000000003 x25: 0000000000000000 x24: ffff0000cb6fd7a8 x23: 0000000000000001 x22: ffff80008afc2480 x21: ffff80008b539420 x20: 0000000000000000 x19: ffff8000891ac9a0 x18: 00000000ffffffff x17: 3239363030303030 x16: ffff80008ae642c8 x15: ffff700011ede14c x14: 1ffff00011ede14c x13: 0000000000000004 x12: ffffffffffffffff x11: ffff700011ede14c x10: 0000000000ff0100 x9 : 5fa3c1ffaf0ff000 x8 : 5fa3c1ffaf0ff000 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff8000a03a7018 x4 : ffff80008f766c20 x3 : ffff80008054d360 x2 : 0000000000000000 x1 : 0000000000000201 x0 : 0000000000000000 Call trace: debug_print_object lib/debugobjects.c:612 [inline] (P) debug_object_active_state+0x28c/0x350 lib/debugobjects.c:1064 (P) debug_rcu_head_queue kernel/rcu/rcu.h:237 [inline] kvfree_call_rcu+0x64/0x3f0 mm/slab_common.c:1953 cipso_v4_sock_setattr+0x2f0/0x3f4 net/ipv4/cipso_ipv4.c:1914 netlbl_sock_setattr+0x240/0x334 net/netlabel/netlabel_kapi.c:1000 smack_netlbl_add+0xa8/0x158 security/smack/smack_lsm.c:2581 smack_inode_setsecurity+0x378/0x430 security/smack/smack_lsm.c:2912 security_inode_setsecurity+0x118/0x3c0 security/security.c:2706 __vfs_setxattr_noperm+0x174/0x5c4 fs/xattr.c:251 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:295 vfs_setxattr+0x158/0x2ac fs/xattr.c:321 do_setxattr fs/xattr.c:636 [inline] file_setxattr+0x1b8/0x294 fs/xattr.c:646 path_setxattrat+0x2ac/0x320 fs/xattr.c:711 __do_sys_fsetxattr fs/xattr.c:761 [inline] __se_sys_fsetxattr fs/xattr.c:758 [inline] __arm64_sys_fsetxattr+0xc0/0xdc fs/xattr.c:758 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x180 arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 765 hardirqs last enabled at (764): [<ffff80008055484c>] __up_console_sem kernel/printk/printk.c:344 [inline] hardirqs last enabled at (764): [<ffff80008055484c>] __console_unlock+0x70/0xc4 kernel/printk/printk.c:2885 hardirqs last disabled at (765): [<ffff80008aef73d4>] el1_brk64+0x1c/0x48 arch/arm64/kernel/entry-common.c:574 softirqs last enabled at (668): [<ffff8000891992e0>] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (668): [<ffff8000891992e0>] release_sock+0x14c/0x1ac net/core/sock.c:3776 softirqs last disabled at (712): [<ffff800082c8970c>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ kvfree_call_rcu(): Double-freed call. rcu_head 000000006921da73 WARNING: CPU: 0 PID: 6718 at mm/slab_common.c:1956 kvfree_call_rcu+0x94/0x3f0 mm/slab_common.c:1955 Modules linked in: CPU: 0 UID: 0 PID: 6718 Comm: syz.0.17 Tainted: G W 6.16.0-rc4-syzkaller-g7482bb149b9f #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : kvfree_call_rcu+0x94/0x3f0 mm/slab_common.c:1955 lr : kvfree_call_rcu+0x94/0x3f0 mm/slab_common.c:1955 sp : ffff8000a03a7730 x29: ffff8000a03a7730 x28: 00000000fffffff5 x27: 1fffe000184823d3 x26: dfff800000000000 x25: ffff0000c2411e9e x24: ffff0000dd88da00 x23: ffff8000891ac9a0 x22: 00000000ffffffea x21: ffff8000891ac9a0 x20: ffff8000891ac9a0 x19: ffff80008afc2480 x18: 00000000ffffffff x17: 0000000000000000 x16: ffff80008ae642c8 x15: ffff700011ede14c x14: 1ffff00011ede14c x13: 0000000000000004 x12: ffffffffffffffff x11: ffff700011ede14c x10: 0000000000ff0100 x9 : 5fa3c1ffaf0ff000 x8 : 5fa3c1ffaf0ff000 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff8000a03a7078 x4 : ffff80008f766c20 x3 : ffff80008054d360 x2 : 0000000000000000 x1 : 0000000000000201 x0 : 0000000000000000 Call trace: kvfree_call_rcu+0x94/0x3f0 mm/slab_common.c:1955 (P) cipso_v4_sock_setattr+0x2f0/0x3f4 net/ipv4/cipso_ipv4.c:1914 netlbl_sock_setattr+0x240/0x334 net/netlabel/netlabel_kapi.c:1000 smack_netlbl_add+0xa8/0x158 security/smack/smack_lsm.c:2581 smack_inode_setsecurity+0x378/0x430 security/smack/smack_lsm.c:2912 security_inode_setsecurity+0x118/0x3c0 security/security.c:2706 __vfs_setxattr_noperm+0x174/0x5c4 fs/xattr.c:251 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:295 vfs_setxattr+0x158/0x2ac fs/xattr.c:321 do_setxattr fs/xattr.c:636 [inline] file_setxattr+0x1b8/0x294 fs/xattr.c:646 path_setxattrat+0x2ac/0x320 fs/xattr.c:711 __do_sys_fsetxattr fs/xattr.c:761 [inline] __se_sys_fsetxattr fs/xattr.c:758 [inline] __arm64_sys_fsetxattr+0xc0/0xdc fs/xattr.c:758 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x180 arch/arm64/kernel/entry-common.c:879 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:898 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 789 hardirqs last enabled at (788): [<ffff80008055484c>] __up_console_sem kernel/printk/printk.c:344 [inline] hardirqs last enabled at (788): [<ffff80008055484c>] __console_unlock+0x70/0xc4 kernel/printk/printk.c:2885 hardirqs last disabled at (789): [<ffff80008aef73d4>] el1_brk64+0x1c/0x48 arch/arm64/kernel/entry-common.c:574 softirqs last enabled at (668): [<ffff8000891992e0>] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (668): [<ffff8000891992e0>] release_sock+0x14c/0x1ac net/core/sock.c:3776 softirqs last disabled at (712): [<ffff800082c8970c>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---

Crashes (2):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2025/07/07 19:50	git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci	7482bb149b9f	4f67c4ae	.config	console log	report	syz / log	C		[disk image] [vmlinux] [kernel image]	ci-upstream-gce-arm64	WARNING in kvfree_call_rcu
2025/07/07 19:19	git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci	7482bb149b9f	4f67c4ae	.config	console log	report	syz / log	C		[disk image] [vmlinux] [kernel image]	ci-upstream-gce-arm64	WARNING in kvfree_call_rcu

Crashes (2):

Assets (help?)