loop1: detected capacity change from 0 to 1 ------------[ cut here ]------------ WARNING: fs/namespace.c:1434 at mntput_no_expire+0x78e/0xbe0, CPU#1: syz-executor.6/298 Modules linked in: CPU: 1 UID: 0 PID: 298 Comm: syz-executor.6 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:ffff88801721fce0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 1ffff11002e43fa1 RCX: ffffffff81bf96d3 RDX: ffff88801c503700 RSI: ffffffff81bf96dd RDI: 0000000000000005 RBP: ffff88800c199500 R08: 0000000000000001 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000001 R12: ffff88801721fd48 R13: 00000000ffffffff R14: ffff88800c199500 R15: ffff88800c1995e8 FS: 000055557522d400(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007faa28544050 CR3: 0000000040688000 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: 0033:0x7f9dd20caf87 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:00007ffcc9ce3798 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007f9dd20caf87 RDX: 00007ffcc9ce3869 RSI: 000000000000000a RDI: 00007ffcc9ce3860 RBP: 00007ffcc9ce3860 R08: 00000000ffffffff R09: 00007ffcc9ce3630 R10: 000055557522ec7b R11: 0000000000000202 R12: 00007f9dd2123105 R13: 00007ffcc9ce4920 R14: 000055557522ec20 R15: 00007ffcc9ce4960 irq event stamp: 158477 hardirqs last enabled at (158485): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (158494): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (158430): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (158155): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- vfat: Unknown parameter '@þÃc¼AŸ"(Wù.éÆ?ü¨ã—%é”ßò6±FźXZªÍ­ëˆ+Ø' loop1: detected capacity change from 0 to 16 tmpfs: Invalid gid '0x00000000ffffffff' loop1: detected capacity change from 0 to 6 mac80211_hwsim hwsim7 wlan1: entered promiscuous mode mac80211_hwsim hwsim7 wlan1: left promiscuous mode loop1: detected capacity change from 0 to 1 vfat: Unknown parameter '@þÃc¼AŸ"(Wù.éÆ?ü¨ã—%é”ßò6±FźXZªÍ­ëˆ+Ø' loop1: detected capacity change from 0 to 16 tmpfs: Invalid gid '0x00000000ffffffff' loop1: detected capacity change from 0 to 6 BUG: unable to handle page fault for address: ffffed10212c9426 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 7ffd4067 P4D 7ffd4067 PUD 7ffd3067 PMD 0 Oops: Oops: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 3992 Comm: syz-executor.5 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:perf_tp_event+0x175/0xe70 Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01 RSP: 0018:ffff888046c17780 EFLAGS: 00010012 RAX: 1ffff110212c9426 RBX: ffff888109649f40 RCX: ffffc90007242000 RDX: 0000000000040000 RSI: ffffffff818995b7 RDI: ffff88810964a130 RBP: ffff888046c179f0 R08: ffff88806ce31340 R09: ffffe8ffffc164f0 R10: 0000000000000000 R11: ffff88806ce37018 R12: dffffc0000000000 R13: 0000000000000014 R14: ffff88806ce31340 R15: dffffc0000000000 FS: 00007fc511814700(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed10212c9426 CR3: 000000000f09e000 CR4: 0000000000350ef0 Call Trace: perf_trace_run_bpf_submit+0xef/0x180 perf_trace_preemptirq_template+0x259/0x430 trace_irq_enable.constprop.0+0xa6/0x100 trace_hardirqs_on+0x26/0x40 _raw_spin_unlock_irqrestore+0x2c/0x50 try_to_wake_up+0x8ae/0x11d0 wake_up_q+0xa1/0x130 futex_wake+0x47e/0x540 do_futex+0x26d/0x370 __x64_sys_futex+0x1c9/0x4d0 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc51429eb19 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:00007fc511814218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007fc5143b1f68 RCX: 00007fc51429eb19 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc5143b1f6c RBP: 00007fc5143b1f60 R08: 000000000000000e R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 00007fc5143b1f6c R13: 00007ffd5701317f R14: 00007fc511814300 R15: 0000000000022000 Modules linked in: CR2: ffffed10212c9426 ---[ end trace 0000000000000000 ]--- RIP: 0010:perf_tp_event+0x175/0xe70 Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01 RSP: 0018:ffff888046c17780 EFLAGS: 00010012 RAX: 1ffff110212c9426 RBX: ffff888109649f40 RCX: ffffc90007242000 RDX: 0000000000040000 RSI: ffffffff818995b7 RDI: ffff88810964a130 RBP: ffff888046c179f0 R08: ffff88806ce31340 R09: ffffe8ffffc164f0 R10: 0000000000000000 R11: ffff88806ce37018 R12: dffffc0000000000 R13: 0000000000000014 R14: ffff88806ce31340 R15: dffffc0000000000 FS: 00007fc511814700(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed10212c9426 CR3: 000000000f09e000 CR4: 0000000000350ef0 note: syz-executor.5[3992] exited with irqs disabled BUG: unable to handle page fault for address: ffffed10212c9426 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 7ffd4067 P4D 7ffd4067 PUD 7ffd3067 PMD 0 Oops: Oops: 0000 [#2] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 3992 Comm: syz-executor.5 Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) Tainted: [D]=DIE, [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:perf_tp_event+0x175/0xe70 Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01 RSP: 0018:ffff88806ce08b80 EFLAGS: 00010012 RAX: 1ffff110212c9426 RBX: ffff888109649f40 RCX: 0000000000000002 RDX: ffff888047559b80 RSI: ffffffff818995b7 RDI: ffff88810964a130 RBP: ffff88806ce08df0 R08: ffff88806ce313e8 R09: ffffe8ffffc164f0 R10: 0000000000000000 R11: ffff88801c820498 R12: dffffc0000000000 R13: 0000000000000014 R14: ffff88806ce313e8 R15: dffffc0000000000 FS: 00007fc511814700(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed10212c9426 CR3: 000000000f09e000 CR4: 0000000000350ef0 Call Trace: perf_trace_run_bpf_submit+0xef/0x180 perf_trace_preemptirq_template+0x259/0x430 trace_irq_enable.constprop.0+0xa6/0x100 trace_hardirqs_on+0x26/0x40 handle_softirqs+0x16e/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:make_task_dead+0xa2/0x3b0 Code: 38 00 85 db 0f 84 21 01 00 00 e8 d9 96 38 00 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 27 92 38 00 48 85 db 0f 84 17 01 00 00 b9 96 38 00 31 ff 65 8b 1d 60 df 48 06 81 e3 ff ff ff 7f 89 de RSP: 0018:ffff888046c17f28 EFLAGS: 00000246 RAX: 0000000000000001 RBX: ffff888047559b80 RCX: ffffffff817c2b86 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff813b5234 RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff8643ac57 R11: 0000000000000001 R12: ffff888047559b80 R13: 0000000000000009 R14: ffff888046c17760 R15: 0000000000000000 rewind_stack_and_make_dead+0x16/0x20 RIP: 0033:0x7fc51429eb19 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:00007fc511814218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007fc5143b1f68 RCX: 00007fc51429eb19 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fc5143b1f6c RBP: 00007fc5143b1f60 R08: 000000000000000e R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 00007fc5143b1f6c R13: 00007ffd5701317f R14: 00007fc511814300 R15: 0000000000022000 Modules linked in: CR2: ffffed10212c9426 ---[ end trace 0000000000000000 ]--- RIP: 0010:perf_tp_event+0x175/0xe70 Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01 RSP: 0018:ffff888046c17780 EFLAGS: 00010012 RAX: 1ffff110212c9426 RBX: ffff888109649f40 RCX: ffffc90007242000 RDX: 0000000000040000 RSI: ffffffff818995b7 RDI: ffff88810964a130 RBP: ffff888046c179f0 R08: ffff88806ce31340 R09: ffffe8ffffc164f0 R10: 0000000000000000 R11: ffff88806ce37018 R12: dffffc0000000000 R13: 0000000000000014 R14: ffff88806ce31340 R15: dffffc0000000000 FS: 00007fc511814700(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed10212c9426 CR3: 000000000f09e000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: df 48 89 fisttps -0x77(%rax) 3: 85 a8 fd ff ff 48 test %ebp,0x48fffffd(%rax) 9: c1 e8 03 shr $0x3,%eax c: 4c 01 e0 add %r12,%rax f: 48 89 85 c8 fd ff ff mov %rax,-0x238(%rbp) 16: e8 c9 51 ea ff callq 0xffea51e4 1b: 48 8d bb f0 01 00 00 lea 0x1f0(%rbx),%rdi 22: 48 89 f8 mov %rdi,%rax 25: 48 c1 e8 03 shr $0x3,%rax * 29: 42 0f b6 04 20 movzbl (%rax,%r12,1),%eax <-- trapping instruction 2e: 84 c0 test %al,%al 30: 74 08 je 0x3a 32: 3c 03 cmp $0x3,%al 34: 0f 8e c5 0b 00 00 jle 0xbff 3a: 44 rex.R 3b: 8b .byte 0x8b 3c: ab stos %eax,%es:(%rdi) 3d: f0 lock 3e: 01 .byte 0x1