loop3: detected capacity change from 0 to 264192 iso9660: Unknown parameter 'nor} TpBLaglIO7R0[jtZ3LϟRiqLo.;լlq T^^#9m>lHsحO5"g$'' Oops: general protection fault, probably for non-canonical address 0xdffffc0000000032: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000190-0x0000000000000197] CPU: 0 UID: 0 PID: 4053 Comm: syz-executor.3 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: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:ffff888016c3f5c0 EFLAGS: 00010212 RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc90008644000 RDX: 0000000000040000 RSI: ffffffff8189a4e7 RDI: 0000000000000191 RBP: ffff888016c3f830 R08: ffff88806ce31340 R09: ffffe8ffffc11c38 R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 R13: 000000000000001c R14: ffff88806ce31340 R15: dffffc0000000000 FS: 00007fabc549f700(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d123000 CR3: 0000000047502000 CR4: 0000000000350ef0 Call Trace: perf_trace_run_bpf_submit+0xef/0x180 perf_trace_contention_begin+0x235/0x3e0 trace_contention_begin+0xae/0x110 __mutex_lock+0x14b/0x1020 lo_ioctl+0x289/0x1c70 blkdev_ioctl+0x27c/0x6c0 __x64_sys_ioctl+0x18f/0x210 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fabc7f298d7 Code: 3c 1c 48 f7 d8 49 39 c4 72 b8 e8 a4 54 02 00 85 c0 78 bd 48 83 c4 08 4c 89 e0 5b 41 5c c3 0f 1f 44 00 00 b8 10 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:00007fabc549efa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000020005080 RCX: 00007fabc7f298d7 RDX: 0000000000000000 RSI: 0000000000004c01 RDI: 0000000000000004 RBP: 00007fabc549f6bc R08: 00007fabc549f040 R09: 0000000020004f80 R10: 0000000000808001 R11: 0000000000000246 R12: ffffffffffffffff R13: 0000000000000016 R14: 00007fabc549f000 R15: 00000000200000c0 Modules linked in: ---[ 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:ffff888016c3f5c0 EFLAGS: 00010212 RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc90008644000 RDX: 0000000000040000 RSI: ffffffff8189a4e7 RDI: 0000000000000191 RBP: ffff888016c3f830 R08: ffff88806ce31340 R09: ffffe8ffffc11c38 R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 R13: 000000000000001c R14: ffff88806ce31340 R15: dffffc0000000000 FS: 00007fabc549f700(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d123000 CR3: 0000000047502000 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