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: 10769 Comm: syz-executor.1 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:ffff88804158fcc0 EFLAGS: 00010212 RAX: 0000000000000000 RBX: ffff88800c0880c0 RCX: 1ffffe21fe605735 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffed100fffc000 RBP: ffff88800c0b4c80 R08: 0000000000000005 R09: ffffed1001811018 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800c0b4c80 R13: ffff88800c0880c0 R14: ffffffff815f27a0 R15: 1ffff1100112341f FS: 00007f4635ef7700(0000) GS:ffff88806d100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed100fffc000 CR3: 0000000019c8e000 CR4: 0000000000350ee0 Call Trace: kasan_unpoison+0x23/0x60 mempool_exit+0x1c2/0x330 bioset_exit+0x2c9/0x630 disk_release+0x143/0x490 device_release+0xa2/0x250 kobject_put+0x173/0x280 put_device+0x1b/0x40 put_disk+0x41/0x60 loop_control_ioctl+0x4d1/0x630 __x64_sys_ioctl+0x19a/0x220 do_syscall_64+0x3b/0xa0 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f46389a2b19 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:00007f4635ef7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f4638ab6020 RCX: 00007f46389a2b19 RDX: 0000000000000000 RSI: 0000000000004c81 RDI: 0000000000000005 RBP: 00007f46389fcf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffca5acb3bf R14: 00007f4635ef7300 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:ffff88804158fcc0 EFLAGS: 00010212 RAX: 0000000000000000 RBX: ffff88800c0880c0 RCX: 1ffffe21fe605735 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffed100fffc000 RBP: ffff88800c0b4c80 R08: 0000000000000005 R09: ffffed1001811018 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800c0b4c80 R13: ffff88800c0880c0 R14: ffffffff815f27a0 R15: 1ffff1100112341f FS: 00007f4635ef7700(0000) GS:ffff88806d100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffed100fffc000 CR3: 0000000019c8e000 CR4: 0000000000350ee0 loop6: detected capacity change from 0 to 214078 FAT-fs (loop6): Unrecognized mount option "nodots=00000000000000000000002" or missing value loop2: detected capacity change from 0 to 368 loop6: detected capacity change from 0 to 214078 FAT-fs (loop6): Unrecognized mount option "nodots=00000000000000000000002" or missing value loop6: detected capacity change from 0 to 214078 FAT-fs (loop6): Unrecognized mount option "nodots=00000000000000000000002" or missing value loop6: detected capacity change from 0 to 214078 FAT-fs (loop6): Unrecognized mount option "nodots=00000000000000000000002" or missing value loop4: detected capacity change from 0 to 214078 FAT-fs (loop4): Unrecognized mount option "nodots=00000000000000000000002" or missing value I/O error, dev loop4, sector 213888 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2 loop4: detected capacity change from 0 to 214078 FAT-fs (loop4): Unrecognized mount option "nodots=00000000000000000000002" or missing value loop2: detected capacity change from 0 to 214078 FAT-fs (loop2): Unrecognized mount option "nodots=00000000000000000000002" or missing value loop4: detected capacity change from 0 to 214078 FAT-fs (loop4): Unrecognized mount option "nodots=00000000000000000000002" or missing value loop2: detected capacity change from 0 to 214078 FAT-fs (loop2): Unrecognized mount option "nodots=00000000000000000000002" or missing value loop2: detected capacity change from 0 to 214078 FAT-fs (loop2): Unrecognized mount option "nodots=00000000000000000000002" or missing value BUG: unable to handle page fault for address: fffffbca2dd27e06 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 6dfd0067 P4D 6dfd0067 PUD 6de7c067 PMD 6de7b067 PTE 0 Oops: 0000 [#2] PREEMPT SMP KASAN NOPTI CPU: 1 PID: 11011 Comm: syz-executor.6 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:get_desc+0x128/0x470 Code: e2 02 00 00 83 e0 07 38 c2 0f 9e c1 84 d2 0f 95 c0 84 c1 0f 85 cd 02 00 00 48 ba 00 00 00 00 00 fc ff df 48 89 d8 48 c1 e8 03 <0f> b6 0c 10 48 8d 43 07 48 89 c6 48 c1 ee 03 0f b6 14 16 48 89 de RSP: 0000:ffff88803dd2fbf8 EFLAGS: 00010216 RAX: 1fffffca2dd27e06 RBX: fffffe516e93f030 RCX: 0000000000000001 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000006 RBP: ffff88803dd2fcb8 R08: 0000000000000006 R09: 000000000000007f R10: 0000000000000030 R11: 0000000000000001 R12: 1ffff11007ba5f7f R13: dffffc0000000000 R14: 0000000000000000 R15: 000000000000007f FS: 00007f5a53cca700(0000) GS:ffff88806d100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffbca2dd27e06 CR3: 000000001f0b4000 CR4: 0000000000350ee4 Call Trace: insn_get_code_seg_params+0xa7/0x1b0 insn_decode_from_regs+0x6e/0x1a0 fixup_umip_exception+0xc7/0x6e0 exc_general_protection+0x15d/0x220 asm_exc_alignment_check-0xe/0x30 RIP: 0033:0x7ffe2874d942 Code: 83 08 00 00 0f 84 b5 00 00 00 4c 63 d7 49 c1 e2 04 4d 01 ca 45 8b 19 41 f6 c3 01 0f 85 8d 00 00 00 41 8b 41 04 83 f8 01 75 6f <0f> 01 f9 66 90 48 c1 e2 20 48 09 c2 48 85 d2 78 63 49 8b 49 08 49 RSP: 002b:00007f5a53cca150 EFLAGS: 00010246 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000001 RDX: 0000000000000002 RSI: 00007f5a53cca1f0 RDI: 0000000000000001 RBP: 00007f5a53cca170 R08: 0000000000000000 R09: 00007ffe28749080 R10: 00007ffe28749090 R11: 000000000007e14a R12: 00007f5a53cca1f0 R13: 00007ffe2862cd8f R14: 00007f5a53cca300 R15: 0000000000022000 Modules linked in: CR2: fffffbca2dd27e06 ---[ 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:ffff88804158fcc0 EFLAGS: 00010212 RAX: 0000000000000000 RBX: ffff88800c0880c0 RCX: 1ffffe21fe605735 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffed100fffc000 RBP: ffff88800c0b4c80 R08: 0000000000000005 R09: ffffed1001811018 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800c0b4c80 R13: ffff88800c0880c0 R14: ffffffff815f27a0 R15: 1ffff1100112341f FS: 00007f5a53cca700(0000) GS:ffff88806d100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffbca2dd27e06 CR3: 000000001f0b4000 CR4: 0000000000350ee4 audit: type=1326 audit(1667216150.021:9): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=11009 comm="syz-executor.6" exe="/syz-executor.6" sig=9 arch=c000003e syscall=231 compat=0 ip=0x7f5a56754b19 code=0x0 BUG: unable to handle page fault for address: fffffbca2dd27e06 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 6dfd0067 P4D 6dfd0067 PUD 6de7c067 PMD 6de7b067 PTE 0 Oops: 0000 [#3] PREEMPT SMP KASAN NOPTI CPU: 1 PID: 11035 Comm: syz-executor.6 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:get_desc+0x128/0x470 Code: e2 02 00 00 83 e0 07 38 c2 0f 9e c1 84 d2 0f 95 c0 84 c1 0f 85 cd 02 00 00 48 ba 00 00 00 00 00 fc ff df 48 89 d8 48 c1 e8 03 <0f> b6 0c 10 48 8d 43 07 48 89 c6 48 c1 ee 03 0f b6 14 16 48 89 de RSP: 0000:ffff88804037fbf8 EFLAGS: 00010216 RAX: 1fffffca2dd27e06 RBX: fffffe516e93f030 RCX: 0000000000000001 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000006 RBP: ffff88804037fcb8 R08: 0000000000000006 R09: 000000000000007f R10: 0000000000000030 R11: 0000000000000001 R12: 1ffff1100806ff7f R13: dffffc0000000000 R14: 0000000000000000 R15: 000000000000007f FS: 00007f5a53cca700(0000) GS:ffff88806d100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffbca2dd27e06 CR3: 000000003d0ac000 CR4: 0000000000350ee4 Call Trace: insn_get_code_seg_params+0xa7/0x1b0 insn_decode_from_regs+0x6e/0x1a0 fixup_umip_exception+0xc7/0x6e0 exc_general_protection+0x15d/0x220 asm_exc_alignment_check-0xe/0x30 RIP: 0033:0x7ffe2874d942 Code: 83 08 00 00 0f 84 b5 00 00 00 4c 63 d7 49 c1 e2 04 4d 01 ca 45 8b 19 41 f6 c3 01 0f 85 8d 00 00 00 41 8b 41 04 83 f8 01 75 6f <0f> 01 f9 66 90 48 c1 e2 20 48 09 c2 48 85 d2 78 63 49 8b 49 08 49 RSP: 002b:00007f5a53cca150 EFLAGS: 00010246 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000001 RDX: 0000000000000002 RSI: 00007f5a53cca1f0 RDI: 0000000000000001 RBP: 00007f5a53cca170 R08: 0000000000000000 R09: 00007ffe28749080 R10: 00007ffe28749090 R11: 000000000007e7fa R12: 00007f5a53cca1f0 R13: 00007ffe2862cd8f R14: 00007f5a53cca300 R15: 0000000000022000 Modules linked in: CR2: fffffbca2dd27e06 ---[ 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:ffff88804158fcc0 EFLAGS: 00010212 RAX: 0000000000000000 RBX: ffff88800c0880c0 RCX: 1ffffe21fe605735 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffed100fffc000 RBP: ffff88800c0b4c80 R08: 0000000000000005 R09: ffffed1001811018 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800c0b4c80 R13: ffff88800c0880c0 R14: ffffffff815f27a0 R15: 1ffff1100112341f FS: 00007f5a53cca700(0000) GS:ffff88806d100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffbca2dd27e06 CR3: 000000003d0ac000 CR4: 0000000000350ee4 sr 1:0:0:0: [sr0] CDROM not ready. Make sure there is a disc in the drive. sr 1:0:0:0: [sr0] CDROM not ready. Make sure there is a disc in the drive. ---------------- 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)