loop1: detected capacity change from 0 to 40 loop0: detected capacity change from 0 to 40 BUG: unable to handle page fault for address: ffffed100fffc000 #PF: supervisor write access in kernel mode #PF: error_code(0x0002) - not-present page PGD 7ffd3067 P4D 7ffd3067 PUD 7ffd2067 PMD 7ffd1067 PTE 0 Oops: 0002 [#1] PREEMPT SMP KASAN NOPTI CPU: 1 PID: 10559 Comm: syz-executor.0 Not tainted 6.1.0-rc3-next-20221031 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__memset+0x24/0x50 Code: 90 90 90 90 90 90 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 48 ab 89 d1 f3 aa 4c 89 c8 e9 4d d4 12 00 66 66 2e 0f 1f 84 00 RSP: 0018:ffff888040e8f770 EFLAGS: 00010012 RAX: 0000000000000000 RBX: ffff88800884b100 RCX: 1ffffe21fe442d04 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffed100fffc000 RBP: ffff888008849000 R08: 0000000000000005 R09: ffffed1001109620 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800884b100 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000400 FS: 00007ff3c87b8700(0000) GS:ffff88806d100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed100fffc000 CR3: 000000000e680000 CR4: 0000000000350ee0 Call Trace: kasan_unpoison+0x23/0x60 remove_element+0x12e/0x1a0 mempool_alloc+0x22f/0x380 bio_alloc_bioset+0x39a/0x790 submit_bh_wbc+0x281/0x660 __bh_read+0xa3/0x200 __breadahead+0xf5/0x170 fat_ent_reada.part.0+0x2a7/0x570 fat_trim_fs+0x421/0xfd0 fat_generic_ioctl+0x44a/0x18e0 __x64_sys_ioctl+0x19a/0x220 do_syscall_64+0x3b/0xa0 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7ff3cb242b19 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:00007ff3c87b8188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ff3cb355f60 RCX: 00007ff3cb242b19 RDX: 0000000020000080 RSI: 00000000c0185879 RDI: 0000000000000003 RBP: 00007ff3c87b81d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffec1c3542f R14: 00007ff3c87b8300 R15: 0000000000022000 Modules linked in: CR2: ffffed100fffc000 ---[ end trace 0000000000000000 ]--- RIP: 0010:__memset+0x24/0x50 Code: 90 90 90 90 90 90 0f 1f 44 00 00 49 89 f9 48 89 d1 83 e2 07 48 c1 e9 03 40 0f b6 f6 48 b8 01 01 01 01 01 01 01 01 48 0f af c6 48 ab 89 d1 f3 aa 4c 89 c8 e9 4d d4 12 00 66 66 2e 0f 1f 84 00 RSP: 0018:ffff888040e8f770 EFLAGS: 00010012 RAX: 0000000000000000 RBX: ffff88800884b100 RCX: 1ffffe21fe442d04 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffed100fffc000 RBP: ffff888008849000 R08: 0000000000000005 R09: ffffed1001109620 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800884b100 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000400 FS: 00007ff3c87b8700(0000) GS:ffff88806d100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed100fffc000 CR3: 000000000e680000 CR4: 0000000000350ee0 note: syz-executor.0[10559] exited with preempt_count 1 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 10559 at kernel/exit.c:765 do_exit+0x1c1e/0x2730 Modules linked in: CPU: 1 PID: 10559 Comm: syz-executor.0 Tainted: G D 6.1.0-rc3-next-20221031 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:do_exit+0x1c1e/0x2730 Code: 00 00 65 01 05 ff a8 eb 7e e9 5b fb ff ff e8 d9 96 30 00 4c 89 f6 bf 05 06 00 00 e8 0c de 02 00 e9 ac e8 ff ff e8 c2 96 30 00 <0f> 0b e9 e6 e5 ff ff e8 b6 96 30 00 48 89 ef e8 1e 77 2f 00 e9 8d RSP: 0018:ffff888040e8fe48 EFLAGS: 00010212 RAX: 000000000002f0c2 RBX: ffff88800e8357c0 RCX: ffffc90004be5000 RDX: 0000000000040000 RSI: ffffffff811793fe RDI: ffff88800e8410f0 RBP: ffff88800e840000 R08: 0000000000000000 R09: 0000000000000000 R10: ffffed1002b08de0 R11: 0000000000000001 R12: ffff88800e840798 R13: ffff888015846f00 R14: 0000000000000009 R15: 0000000000000001 FS: 00007ff3c87b8700(0000) GS:ffff88806d100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed100fffc000 CR3: 000000000e680000 CR4: 0000000000350ee0 Call Trace: make_task_dead+0x102/0x130 rewind_stack_and_make_dead+0x17/0x30 RIP: 0033:0x7ff3cb242b19 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:00007ff3c87b8188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ff3cb355f60 RCX: 00007ff3cb242b19 RDX: 0000000020000080 RSI: 00000000c0185879 RDI: 0000000000000003 RBP: 00007ff3c87b81d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffec1c3542f R14: 00007ff3c87b8300 R15: 0000000000022000 irq event stamp: 1684 hardirqs last enabled at (1683): [] __find_get_block+0x6f4/0xc10 hardirqs last disabled at (1684): [] _raw_spin_lock_irqsave+0x52/0x70 softirqs last enabled at (1398): [] __irq_exit_rcu+0x11b/0x190 softirqs last disabled at (1391): [] __irq_exit_rcu+0x11b/0x190 ---[ end trace 0000000000000000 ]--- FAULT_INJECTION: forcing a failure. name fail_usercopy, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 10556 Comm: syz-executor.1 Tainted: G D W 6.1.0-rc3-next-20221031 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: dump_stack_lvl+0x8b/0xc3 populate_error_injection_list.cold-0x5/0x19 _copy_from_user+0x2a/0x180 fat_generic_ioctl+0x384/0x18e0 __x64_sys_ioctl+0x19a/0x220 do_syscall_64+0x3b/0xa0 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fd308afeb19 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:00007fd306074188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fd308c11f60 RCX: 00007fd308afeb19 RDX: 0000000020000080 RSI: 00000000c0185879 RDI: 0000000000000003 RBP: 00007fd3060741d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffe4e7c628f R14: 00007fd306074300 R15: 0000000000022000 loop3: detected capacity change from 0 to 40 FAT-fs (loop3): bogus number of reserved sectors FAT-fs (loop3): Can't find a valid FAT filesystem ---------------- Code disassembly (best guess): 0: 90 nop 1: 90 nop 2: 90 nop 3: 90 nop 4: 90 nop 5: 90 nop 6: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) b: 49 89 f9 mov %rdi,%r9 e: 48 89 d1 mov %rdx,%rcx 11: 83 e2 07 and $0x7,%edx 14: 48 c1 e9 03 shr $0x3,%rcx 18: 40 0f b6 f6 movzbl %sil,%esi 1c: 48 b8 01 01 01 01 01 movabs $0x101010101010101,%rax 23: 01 01 01 26: 48 0f af c6 imul %rsi,%rax * 2a: f3 48 ab rep stos %rax,%es:(%rdi) <-- trapping instruction 2d: 89 d1 mov %edx,%ecx 2f: f3 aa rep stos %al,%es:(%rdi) 31: 4c 89 c8 mov %r9,%rax 34: e9 4d d4 12 00 jmpq 0x12d486 39: 66 data16 3a: 66 data16 3b: 2e cs 3c: 0f .byte 0xf 3d: 1f (bad) 3e: 84 00 test %al,(%rax)