------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x33f/0x3d0, CPU#0: syz-executor.1/20743
Modules linked in:
CPU: 0 UID: 0 PID: 20743 Comm: syz-executor.1 Not tainted 6.18.0-rc4-next-20251106 #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+0x33f/0x3d0
Code: ab ff 90 0f 0b 90 eb ee e8 de a2 ab ff 90 0f 0b 90 e9 3f fd ff ff e8 d0 a2 ab ff 90 0f 0b 90 e9 92 fd ff ff e8 c2 a2 ab ff 90 <0f> 0b 90 e9 e5 fd ff ff e8 b4 a2 ab ff 90 0f 0b 90 e9 38 fe ff ff
RSP: 0018:ffff88804d52fe08 EFLAGS: 00010212
RAX: 0000000000000db6 RBX: ffff88804add6c98 RCX: ffffc900036a5000
RDX: 0000000000040000 RSI: ffffffff81c92b5e RDI: 0000000000000001
RBP: ffff888015fbe001 R08: 0000000000000001 R09: ffffed1002bf7d41
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888016184a80
R13: 0000000000000000 R14: ffff888013ed3780 R15: ffff88804d52fe98
FS: 00007fe849b93700(0000) GS:ffff8880e539c000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f782be003c0 CR3: 000000004c384000 CR4: 0000000000350ef0
loop3: detected capacity change from 0 to 264192
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: 0033:0x7fe84c61f107
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:00007fe849b93128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
loop2: detected capacity change from 0 to 264192
RAX: ffffffffffffffda RBX: 00007fe84c730f60 RCX: 00007fe84c61f107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe764dcc1f R14: 00007fe849b93300 R15: 0000000000022000
irq event stamp: 2073
hardirqs last enabled at (2081): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (2090): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (1992): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (1983): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
loop1: detected capacity change from 0 to 65536
------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x35b/0x3d0, CPU#0: syz-executor.1/20743
loop4: detected capacity change from 0 to 264192
Modules linked in:
CPU: 0 UID: 0 PID: 20743 Comm: syz-executor.1 Tainted: G W 6.18.0-rc4-next-20251106 #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 c2 a2 ab ff 90 0f 0b 90 e9 e5 fd ff ff e8 b4 a2 ab ff 90 0f 0b 90 e9 38 fe ff ff e8 a6 a2 ab ff 90 <0f> 0b 90 e9 8b fe ff ff e8 98 a2 ab ff 90 0f 0b 90 e9 de fe ff ff
RSP: 0018:ffff88804d52fe08 EFLAGS: 00010216
RAX: 000000000001e4a1 RBX: ffff88804add6c98 RCX: ffffc900036a5000
RDX: 0000000000040000 RSI: ffffffff81c92b7a RDI: 0000000000000001
RBP: ffff88801d4ac801 R08: 0000000000000001 R09: ffffed1003a95917
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888016184a80
R13: 0000000000000000 R14: ffff888013ed3780 R15: ffff88804d52fe98
FS: 00007fe849b93700(0000) GS:ffff8880e539c000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f782be003c0 CR3: 000000004c384000 CR4: 0000000000350ef0
Call Trace:
switch_task_namespaces+0x3d/0x110
__do_sys_setns+0x6b0/0x19a0
loop7: detected capacity change from 0 to 264192
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe84c61f107
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:00007fe849b93128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007fe84c730f60 RCX: 00007fe84c61f107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000006 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe764dcc1f R14: 00007fe849b93300 R15: 0000000000022000
irq event stamp: 2553
hardirqs last enabled at (2563): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (2572): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (2512): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (2507): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
loop1: detected capacity change from 0 to 65536
loop4: detected capacity change from 0 to 264192
loop7: detected capacity change from 0 to 264192
loop3: detected capacity change from 0 to 264192
loop2: detected capacity change from 0 to 264192
loop6: detected capacity change from 0 to 619
loop1: detected capacity change from 0 to 65536
loop4: detected capacity change from 0 to 264192
loop5: detected capacity change from 0 to 65536
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
EXT4-fs mount: 53 callbacks suppressed
EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
loop3: detected capacity change from 0 to 264192
EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000.
CPU: 0 UID: 0 PID: 20788 Comm: syz-executor.6 Tainted: G W 6.18.0-rc4-next-20251106 #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
kmem_cache_alloc_noprof+0x80/0x690
security_inode_alloc+0x3e/0x130
inode_init_always_gfp+0xc9d/0xff0
alloc_inode+0x8d/0x250
new_inode+0x1e/0x160
__shmem_get_inode+0x17c/0xe80
__shmem_file_setup+0x107/0x370
alloc_file+0x2ae/0x590
__x64_sys_memfd_create+0x193/0x280
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f482b795b19
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f4828d0af48 EFLAGS: 00000246 ORIG_RAX: 000000000000013f
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f482b795b19
RDX: 0000000000002c00 RSI: 0000000000000000 RDI: 00007f482b7ef0fb
RBP: 0000000000000003 R08: 0000000000001600 R09: ffffffffffffffff
R10: 0000000000000003 R11: 0000000000000246 R12: 0000000008100000
R13: 0000000020000100 R14: 000000000004d6e1 R15: 00000000200002c0
loop5: detected capacity change from 0 to 65536
EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop3): unmounting filesystem 00000000-0000-0000-0000-000000000000.
loop1: detected capacity change from 0 to 65536
loop3: detected capacity change from 0 to 264192
loop7: detected capacity change from 0 to 264192
loop2: detected capacity change from 0 to 264192
EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop3): unmounting filesystem 00000000-0000-0000-0000-000000000000.
loop4: detected capacity change from 0 to 264192
EXT4-fs (loop7): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop7): unmounting filesystem 00000000-0000-0000-0000-000000000000.
loop7: detected capacity change from 0 to 264192
EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop7): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop4): unmounting filesystem 00000000-0000-0000-0000-000000000000.
EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000.
EXT4-fs (loop7): unmounting filesystem 00000000-0000-0000-0000-000000000000.
loop2: detected capacity change from 0 to 264192
EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000.