------------[ cut here ]------------
WARNING: fs/namespace.c:1434 at mntput_no_expire+0x78e/0xbe0, CPU#1: syz-executor.7/4630
Modules linked in:
CPU: 1 UID: 0 PID: 4630 Comm: syz-executor.7 Tainted: G W 6.17.0-rc3-next-20250829 #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 16 42 81 04 01 e8 31 f8 91 ff e9 41 fc ff ff e8 b7 50 b4 ff 31 ff 44 89 ee e8 dd 4b b4 ff 45 85 ed 79 09 e8 a3 50 b4 ff 90 <0f> 0b 90 e8 9a 50 b4 ff e8 75 f6 fb 02 31 ff 89 c5 89 c6 e8 ba 4b
RSP: 0018:ffff88801761f9b8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff11002ec3f3c RCX: ffffffff81bf96d3
RDX: ffff88804712b700 RSI: ffffffff81bf96dd RDI: 0000000000000005
RBP: ffff88801f242000 R08: 0000000000000001 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000001 R12: ffff88801761fa20
R13: 00000000ffffffff R14: dead000000000100 R15: ffff88801f242000
FS: 0000000000000000(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2cf26000 CR3: 00000000392c2000 CR4: 0000000000350ef0
Call Trace:
namespace_unlock+0x7f1/0x810
put_mnt_ns+0xf5/0x120
free_nsproxy+0x3a/0x400
switch_task_namespaces+0xe2/0x100
do_exit+0x841/0x2970
do_group_exit+0xd3/0x2a0
get_signal+0x2315/0x2340
arch_do_signal_or_restart+0x80/0x790
irqentry_exit_to_user_mode+0x106/0x1c0
exc_page_fault+0xd9/0x180
asm_exc_page_fault+0x26/0x30
RIP: 0033:0x7f2e12513436
Code: Unable to access opcode bytes at 0x7f2e1251340c.
RSP: 002b:00007f2e0fae21a0 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f2e1267ff60 RCX: 00007f2e1267ff60
RDX: 0000000000000000 RSI: 00007f2e1251342e RDI: 00000000200002c0
RBP: 00007f2e125c6f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe848dc9af R14: 00007f2e0fae2300 R15: 0000000000022000
irq event stamp: 785
hardirqs last enabled at (795): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (802): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (338): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (333): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
Invalid option length (1047482) for dns_resolver key
Invalid option length (1047482) for dns_resolver key
Invalid option length (703) for dns_resolver key
Invalid option length (1047482) for dns_resolver key
Invalid option length (1047482) for dns_resolver key
Invalid option length (1047482) for dns_resolver key
Invalid option length (703) for dns_resolver key
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
Invalid option length (1047482) for dns_resolver key
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
misc raw-gadget: fail, usb_gadget_register_driver returned -16
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
tmpfs: Bad value for 'mpol'
tmpfs: Bad value for 'mpol'
tmpfs: Bad value for 'mpol'
tmpfs: Bad value for 'mpol'
tmpfs: Bad value for 'mpol'
netlink: 'syz-executor.5': attribute type 19 has an invalid length.
audit: type=1326 audit(1756469776.063:15): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=4866 comm="syz-executor.0" exe="/syz-executor.0" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fd3e4032b19 code=0x0
Bluetooth: hci4: Controller not accepting commands anymore: ncmd = 0
Bluetooth: hci4: Injecting HCI hardware error event
Bluetooth: hci4: hardware error 0x00
loop5: detected capacity change from 0 to 1024
loop2: detected capacity change from 0 to 140
EXT4-fs (loop5): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
EXT4-fs (loop2): warning: mounting unchecked fs, running e2fsck is recommended
EXT4-fs (loop2): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop5): unmounting filesystem 00000000-0000-0000-0000-000000000000.
EXT4-fs (loop2): unmounting filesystem 00000000-0000-0000-0000-000000000000.
UDPLite: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list
loop5: detected capacity change from 0 to 1024
EXT4-fs (loop5): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback.
EXT4-fs (loop5): unmounting filesystem 00000000-0000-0000-0000-000000000000.