------------[ cut here ]------------
WARNING: fs/namespace.c:1434 at mntput_no_expire+0x78e/0xbe0, CPU#0: syz-executor.2/280
Modules linked in:
CPU: 0 UID: 0 PID: 280 Comm: syz-executor.2 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:ffff888018737ce0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff110030e6fa1 RCX: ffffffff81bfaf93
RDX: ffff888009dd1b80 RSI: ffffffff81bfaf9d RDI: 0000000000000005
RBP: ffff88800d98fa40 R08: 0000000000000001 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000001 R12: ffff888018737d48
R13: 00000000ffffffff R14: ffff88800d98fa40 R15: ffff88800d98fb28
FS: 000055556016f400(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc311ebc58 CR3: 000000003d718000 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: 0033:0x7fdfc6353f87
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:00007ffc311ec398 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 000000000000001b RCX: 00007fdfc6353f87
RDX: 00007ffc311ec46a RSI: 000000000000000a RDI: 00007ffc311ec460
RBP: 00007ffc311ec460 R08: 00000000ffffffff R09: 00007ffc311ec230
R10: 0000555560170c7b R11: 0000000000000246 R12: 00007fdfc63ac105
R13: 00007ffc311ed520 R14: 0000555560170c20 R15: 00007ffc311ed560
irq event stamp: 206799
hardirqs last enabled at (206807): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (206854): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (206884): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (206863): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
capability: warning: `syz-executor.5' uses deprecated v2 capabilities in a way that may be insecure
syz-executor.7 (4226) used greatest stack depth: 24048 bytes left
audit: type=1400 audit(1756726149.853:10): avc: denied { block_suspend } for pid=4285 comm="syz-executor.2" capability=36 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1
program syz-executor.6 is using a deprecated SCSI ioctl, please convert it to SG_IO
program syz-executor.6 is using a deprecated SCSI ioctl, please convert it to SG_IO
program syz-executor.6 is using a deprecated SCSI ioctl, please convert it to SG_IO
program syz-executor.6 is using a deprecated SCSI ioctl, please convert it to SG_IO
vfat: Bad value for 'uni_xlate'
vfat: Bad value for 'uni_xlate'
vfat: Bad value for 'uni_xlate'
vfat: Bad value for 'uni_xlate'
vfat: Bad value for 'uni_xlate'
netlink: 20 bytes leftover after parsing attributes in process `syz-executor.0'.
audit: type=1400 audit(1756726154.579:11): avc: denied { write } for pid=4552 comm="syz-executor.1" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1
syz-executor.4 (4535) used greatest stack depth: 23392 bytes left
autofs4:pid:4647:validate_dev_ioctl: path string terminator missing for cmd(0xc0189375)
autofs4:pid:4647:validate_dev_ioctl: path string terminator missing for cmd(0xc0189375)