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: 0 PID: 12797 Comm: syz-executor.2 Not tainted 6.1.0-rc3-next-20221101 #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 0d d4 12 00 66 66 2e 0f 1f 84 00 RSP: 0018:ffff88804348f018 EFLAGS: 00010016 RAX: 0000000000000000 RBX: ffff888008647100 RCX: 1ffffe21fe432a98 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffed100fffc000 RBP: ffff888008643500 R08: 0000000000000005 R09: ffffed10010c8e20 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888008647100 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000400 FS: 00007f826325a700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed100fffc000 CR3: 00000000435d6000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400 Call Trace: kasan_unpoison+0x23/0x60 remove_element+0x12e/0x1a0 mempool_alloc+0x22f/0x380 bio_alloc_bioset+0x39a/0x790 do_mpage_readpage+0xd73/0x17f0 mpage_readahead+0x346/0x5a0 read_pages+0x1ae/0xca0 page_cache_ra_unbounded+0x465/0x5e0 ondemand_readahead+0x8d7/0x10a0 page_cache_sync_ra+0x1c5/0x210 filemap_get_pages+0x2d2/0x15a0 filemap_read+0x311/0xb70 blkdev_read_iter+0x2b9/0x750 aio_read+0x2a8/0x470 io_submit_one+0x5d3/0x1b20 __x64_sys_io_submit+0x18d/0x300 do_syscall_64+0x3b/0xa0 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f8265ce4b19 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:00007f826325a188 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f8265df7f60 RCX: 00007f8265ce4b19 RDX: 00000000200005c0 RSI: 0000000000000001 RDI: 00007f8265ddb000 RBP: 00007f826325a1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007fff2b92e50f R14: 00007f826325a300 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 0d d4 12 00 66 66 2e 0f 1f 84 00 RSP: 0018:ffff88804348f018 EFLAGS: 00010016 RAX: 0000000000000000 RBX: ffff888008647100 RCX: 1ffffe21fe432a98 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffed100fffc000 RBP: ffff888008643500 R08: 0000000000000005 R09: ffffed10010c8e20 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888008647100 R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000400 FS: 00007f826325a700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed100fffc000 CR3: 00000000435d6000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400 note: syz-executor.2[12797] exited with preempt_count 1 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 12797 at kernel/exit.c:765 do_exit+0x1c1e/0x2730 Modules linked in: CPU: 0 PID: 12797 Comm: syz-executor.2 Tainted: G D 6.1.0-rc3-next-20221101 #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 95 30 00 4c 89 f6 bf 05 06 00 00 e8 0c de 02 00 e9 ac e8 ff ff e8 c2 95 30 00 <0f> 0b e9 e6 e5 ff ff e8 b6 95 30 00 48 89 ef e8 1e 76 2f 00 e9 8d RSP: 0018:ffff88804348fe48 EFLAGS: 00010216 RAX: 00000000000365f1 RBX: ffff88800f78e540 RCX: ffffc900011d8000 RDX: 0000000000040000 RSI: ffffffff811793fe RDI: ffff888008434670 RBP: ffff888008433580 R08: 0000000000000000 R09: 0000000000000000 R10: ffffed1008026378 R11: 0000000000000001 R12: ffff888008433d18 R13: ffff888040131bc0 R14: 0000000000000009 R15: 0000000000000001 FS: 00007f826325a700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed100fffc000 CR3: 00000000435d6000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff4ff0 DR7: 0000000000000400 Call Trace: make_task_dead+0x102/0x130 rewind_stack_and_make_dead+0x17/0x30 RIP: 0033:0x7f8265ce4b19 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:00007f826325a188 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f8265df7f60 RCX: 00007f8265ce4b19 RDX: 00000000200005c0 RSI: 0000000000000001 RDI: 00007f8265ddb000 RBP: 00007f826325a1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007fff2b92e50f R14: 00007f826325a300 R15: 0000000000022000 irq event stamp: 710 hardirqs last enabled at (709): [] _raw_spin_unlock_irq+0x1f/0x60 hardirqs last disabled at (710): [] _raw_spin_lock_irqsave+0x52/0x70 softirqs last enabled at (692): [] __irq_exit_rcu+0x11b/0x190 softirqs last disabled at (683): [] __irq_exit_rcu+0x11b/0x190 ---[ end trace 0000000000000000 ]--- ---------------- 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 0d d4 12 00 jmpq 0x12d446 39: 66 data16 3a: 66 data16 3b: 2e cs 3c: 0f .byte 0xf 3d: 1f (bad) 3e: 84 00 test %al,(%rax)