------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x323/0x3d0, CPU#1: syz-executor.3/13785
Modules linked in:
CPU: 1 UID: 0 PID: 13785 Comm: syz-executor.3 Not tainted 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:nsproxy_ns_active_get+0x323/0x3d0
Code: 00 01 0f 98 c3 31 ff 89 de e8 29 1f ab ff 84 db 75 07 5b 5d e9 4e 24 ab ff e8 49 24 ab ff 90 0f 0b 90 eb ee e8 3e 24 ab ff 90 <0f> 0b 90 e9 3f fd ff ff e8 30 24 ab ff 90 0f 0b 90 e9 92 fd ff ff
RSP: 0018:ffff88801782fe08 EFLAGS: 00010212
RAX: 0000000000000a2b RBX: ffff88801e4fd138 RCX: ffffc900061c6000
RDX: 0000000000040000 RSI: ffffffff81c9aaf2 RDI: 0000000000000001
RBP: ffff888018cc8c01 R08: 0000000000000001 R09: ffffed1003199197
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888016154e00
R13: 0000000000000000 R14: ffff888017499bc0 R15: ffff88801782fe98
FS: 00007f5ce56f1700(0000) GS:ffff8880e5498000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa2eb157260 CR3: 000000001648c000 CR4: 0000000000350ef0
Call Trace:
switch_task_namespaces+0x3d/0x110
__do_sys_setns+0x6b0/0x19a0
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5ce819e107
Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 34 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5ce56f1128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007f5ce82b0020 RCX: 00007f5ce819e107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd832e1d4f R14: 00007f5ce56f1300 R15: 0000000000022000
irq event stamp: 597
hardirqs last enabled at (607): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (616): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (452): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (447): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x331/0x3d0, CPU#1: syz-executor.3/13785
Modules linked in:
CPU: 1 UID: 0 PID: 13785 Comm: syz-executor.3 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
FAULT_INJECTION: forcing a failure.
name fail_usercopy, interval 1, probability 0, space 0, times 0
Tainted: [W]=WARN
CPU: 0 UID: 0 PID: 13788 Comm: syz-executor.1 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
dump_stack_lvl+0xfa/0x120
should_fail_ex+0x4d7/0x5e0
strncpy_from_user+0x3b/0x2f0
getname_flags.part.0+0x8d/0x540
getname_flags+0x95/0xe0
user_path_at+0x27/0x90
__x64_sys_mount+0x1fb/0x310
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6f7200404a
Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6f6f577fa8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00000000200001c0 RCX: 00007f6f7200404a
RDX: 0000000020000c00 RSI: 0000000000000000 RDI: 00007f6f6f578000
RBP: 00007f6f6f578040 R08: 00007f6f6f578040 R09: 0000000020000c00
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000020000c00
R13: 0000000000000000 R14: 00007f6f6f578000 R15: 0000000020000240
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:nsproxy_ns_active_get+0x331/0x3d0
Code: 84 db 75 07 5b 5d e9 4e 24 ab ff e8 49 24 ab ff 90 0f 0b 90 eb ee e8 3e 24 ab ff 90 0f 0b 90 e9 3f fd ff ff e8 30 24 ab ff 90 <0f> 0b 90 e9 92 fd ff ff e8 22 24 ab ff 90 0f 0b 90 e9 e5 fd ff ff
RSP: 0018:ffff88801782fe08 EFLAGS: 00010216
RAX: 000000000001b251 RBX: ffff88801e4fd138 RCX: ffffc900061c6000
RDX: 0000000000040000 RSI: ffffffff81c9ab00 RDI: 0000000000000001
RBP: ffff888018e50b01 R08: 0000000000000001 R09: ffffed10031ca1b6
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888016154e00
R13: 0000000000000000 R14: ffff888017499bc0 R15: ffff88801782fe98
FS: 00007f5ce56f1700(0000) GS:ffff8880e5498000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa2eb157260 CR3: 000000001648c000 CR4: 0000000000350ef0
Call Trace:
switch_task_namespaces+0x3d/0x110
__do_sys_setns+0x6b0/0x19a0
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5ce819e107
Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 34 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5ce56f1128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007f5ce82b0020 RCX: 00007f5ce819e107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd832e1d4f R14: 00007f5ce56f1300 R15: 0000000000022000
irq event stamp: 1993
hardirqs last enabled at (2001): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (2010): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (1738): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (1729): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x33f/0x3d0, CPU#1: syz-executor.3/13785
Modules linked in:
CPU: 1 UID: 0 PID: 13785 Comm: syz-executor.3 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:nsproxy_ns_active_get+0x33f/0x3d0
Code: ab ff 90 0f 0b 90 eb ee e8 3e 24 ab ff 90 0f 0b 90 e9 3f fd ff ff e8 30 24 ab ff 90 0f 0b 90 e9 92 fd ff ff e8 22 24 ab ff 90 <0f> 0b 90 e9 e5 fd ff ff e8 14 24 ab ff 90 0f 0b 90 e9 38 fe ff ff
RSP: 0018:ffff88801782fe08 EFLAGS: 00010216
RAX: 000000000003d9ec RBX: ffff88801e4fd138 RCX: ffffc900061c6000
RDX: 0000000000040000 RSI: ffffffff81c9ab0e RDI: 0000000000000001
RBP: ffff88801715c001 R08: 0000000000000001 R09: ffffed1002e2b941
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888016154e00
R13: 0000000000000000 R14: ffff888017499bc0 R15: ffff88801782fe98
FS: 00007f5ce56f1700(0000) GS:ffff8880e5498000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa2eb157260 CR3: 000000001648c000 CR4: 0000000000350ef0
Call Trace:
switch_task_namespaces+0x3d/0x110
__do_sys_setns+0x6b0/0x19a0
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5ce819e107
Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 34 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5ce56f1128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007f5ce82b0020 RCX: 00007f5ce819e107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd832e1d4f R14: 00007f5ce56f1300 R15: 0000000000022000
irq event stamp: 2423
hardirqs last enabled at (2433): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (2442): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (2206): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (2463): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x35b/0x3d0, CPU#1: syz-executor.3/13785
Modules linked in:
CPU: 1 UID: 0 PID: 13785 Comm: syz-executor.3 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:nsproxy_ns_active_get+0x35b/0x3d0
Code: 0f 0b 90 e9 92 fd ff ff e8 22 24 ab ff 90 0f 0b 90 e9 e5 fd ff ff e8 14 24 ab ff 90 0f 0b 90 e9 38 fe ff ff e8 06 24 ab ff 90 <0f> 0b 90 e9 8b fe ff ff e8 f8 23 ab ff 90 0f 0b 90 e9 de fe ff ff
RSP: 0018:ffff88801782fe08 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff88801e4fd138 RCX: ffffc900061c6000
RDX: 0000000000040000 RSI: ffffffff81c9ab2a RDI: 0000000000000001
RBP: ffff88801694d001 R08: 0000000000000001 R09: ffffed1002d29a17
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888016154e00
R13: 0000000000000000 R14: ffff888017499bc0 R15: ffff88801782fe98
FS: 00007f5ce56f1700(0000) GS:ffff8880e5498000(0000) knlGS:0000000000000000
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa2eb157260 CR3: 000000001648c000 CR4: 0000000000350ef0
CPU: 0 UID: 0 PID: 13798 Comm: syz-executor.1 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
dump_stack_lvl+0xfa/0x120
should_fail_ex+0x4d7/0x5e0
should_failslab+0xc2/0x120
__kmalloc_noprof+0xcd/0x680
inotify_handle_inode_event+0x1b6/0x5c0
fsnotify_handle_inode_event.isra.0+0x1de/0x410
fsnotify+0x13e2/0x18e0
__fsnotify_parent+0x604/0xb50
__fput+0x30d/0xb50
fput_close_sync+0x10f/0x230
__x64_sys_close+0x8f/0x120
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6f71fb572b
Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44
RSP: 002b:00007f6f6f556f90 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00000000200001c0 RCX: 00007f6f71fb572b
RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000006
RBP: 00007f6f6f5576bc R08: 0000000000000000 R09: 0000000020000c00
R10: 0000000000000000 R11: 0000000000000293 R12: ffffffffffffffff
R13: 000000000000000e R14: 00007f6f6f557000 R15: 0000000020000240
Call Trace:
switch_task_namespaces+0x3d/0x110
__do_sys_setns+0x6b0/0x19a0
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5ce819e107
Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 34 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5ce56f1128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007f5ce82b0020 RCX: 00007f5ce819e107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd832e1d4f R14: 00007f5ce56f1300 R15: 0000000000022000
irq event stamp: 3829
hardirqs last enabled at (3839): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (3848): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (3608): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (3587): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 UID: 0 PID: 13834 Comm: syz-executor.1 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
dump_stack_lvl+0xfa/0x120
should_fail_ex+0x4d7/0x5e0
should_failslab+0xc2/0x120
__kmalloc_noprof+0xcd/0x680
inotify_handle_inode_event+0x1b6/0x5c0
fsnotify_handle_inode_event.isra.0+0x1de/0x410
fsnotify+0x13e2/0x18e0
__fsnotify_parent+0x604/0xb50
__fput+0x30d/0xb50
fput_close_sync+0x10f/0x230
__x64_sys_close+0x8f/0x120
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6f71fb572b
Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44
RSP: 002b:00007f6f6f577f90 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 00000000200001c0 RCX: 00007f6f71fb572b
RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000006
RBP: 00007f6f6f5786bc R08: 0000000000000000 R09: 0000000020000c00
R10: 0000000000000000 R11: 0000000000000293 R12: ffffffffffffffff
R13: 000000000000000e R14: 00007f6f6f578000 R15: 0000000020000240