------------[ cut here ]------------
WARNING: fs/namespace.c:1434 at mntput_no_expire+0x78e/0xbe0, CPU#1: syz-executor.1/274
Modules linked in:
CPU: 1 UID: 0 PID: 274 Comm: syz-executor.1 Tainted: G W 6.17.0-rc4-next-20250901 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:mntput_no_expire+0x78e/0xbe0
Code: 05 d6 30 81 04 01 e8 71 df 91 ff e9 41 fc ff ff e8 27 47 b4 ff 31 ff 44 89 ee e8 4d 42 b4 ff 45 85 ed 79 09 e8 13 47 b4 ff 90 <0f> 0b 90 e8 0a 47 b4 ff e8 b5 2d fc 02 31 ff 89 c5 89 c6 e8 2a 42
RSP: 0018:ffff88801a677c00 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff110034cef85 RCX: ffffffff81bfaf93
RDX: ffff8880159b9b80 RSI: ffffffff81bfaf9d RDI: 0000000000000005
RBP: ffff8880159da000 R08: 0000000000000001 R09: 0000000000000000
R10: 00000000fffffffe R11: 0000000000000001 R12: ffff88801a677c68
R13: 00000000fffffffe R14: dead000000000100 R15: ffff8880159da000
FS: 000055556f502400(0000) GS:ffff8880e56d8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000201a3000 CR3: 0000000033949000 CR4: 0000000000350ef0
Call Trace:
namespace_unlock+0x7f1/0x810
path_umount+0x6a4/0x1100
__x64_sys_umount+0x15c/0x190
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbeace2ef87
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 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:00007ffd9374a938 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 0000000000000018 RCX: 00007fbeace2ef87
RDX: 00007ffd9374aa09 RSI: 000000000000000a RDI: 00007ffd9374aa00
RBP: 00007ffd9374aa00 R08: 00000000ffffffff R09: 00007ffd9374a7d0
R10: 000055556f503c7b R11: 0000000000000202 R12: 00007fbeace87105
R13: 00007ffd9374bac0 R14: 000055556f503c20 R15: 00007ffd9374bb00
irq event stamp: 177901
hardirqs last enabled at (177911): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (177920): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (177666): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (177657): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
capability: warning: `syz-executor.0' uses deprecated v2 capabilities in a way that may be insecure
------------[ cut here ]------------
WARNING: fs/namespace.c:1434 at mntput_no_expire+0x78e/0xbe0, CPU#0: syz-executor.1/274
Modules linked in:
CPU: 0 UID: 0 PID: 274 Comm: syz-executor.1 Tainted: G W 6.17.0-rc4-next-20250901 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:mntput_no_expire+0x78e/0xbe0
Code: 05 d6 30 81 04 01 e8 71 df 91 ff e9 41 fc ff ff e8 27 47 b4 ff 31 ff 44 89 ee e8 4d 42 b4 ff 45 85 ed 79 09 e8 13 47 b4 ff 90 <0f> 0b 90 e8 0a 47 b4 ff e8 b5 2d fc 02 31 ff 89 c5 89 c6 e8 2a 42
RSP: 0018:ffff88801a677ce0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff110034cefa1 RCX: ffffffff81bfaf93
RDX: ffff8880159b9b80 RSI: ffffffff81bfaf9d RDI: 0000000000000005
RBP: ffff8880159da000 R08: 0000000000000001 R09: 0000000000000000
R10: 00000000fffffffd R11: 0000000000000001 R12: ffff88801a677d48
R13: 00000000fffffffd R14: ffff8880159da000 R15: ffff8880159da0e8
FS: 000055556f502400(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007eff7d79c5e0 CR3: 0000000033949000 CR4: 0000000000350ef0
Call Trace:
path_umount+0x6e0/0x1100
__x64_sys_umount+0x15c/0x190
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbeace2ef87
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 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:00007ffd9374a938 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 0000000000000018 RCX: 00007fbeace2ef87
RDX: 00007ffd9374aa09 RSI: 000000000000000a RDI: 00007ffd9374aa00
RBP: 00007ffd9374aa00 R08: 00000000ffffffff R09: 00007ffd9374a7d0
R10: 000055556f503c7b R11: 0000000000000202 R12: 00007fbeace87105
R13: 00007ffd9374bac0 R14: 000055556f503c20 R15: 00007ffd9374bb00
irq event stamp: 178357
hardirqs last enabled at (178365): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (178374): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (178004): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (177989): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
loop0: detected capacity change from 0 to 7
loop6: detected capacity change from 0 to 32628
ext4: Unknown parameter 'd1{" B(8Ě`3ut8TRvY{([H( 9'
loop6: detected capacity change from 0 to 32628
ext4: Unknown parameter 'd1{" B(8Ě`3ut8TRvY{([H( 9'
loop6: detected capacity change from 0 to 256
random: crng reseeded on system resumption
loop1: detected capacity change from 0 to 4096