BUG: unable to handle page fault for address: fffffbcd39f02e06 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 6dfd0067 P4D 6dfd0067 PUD 6de04067 PMD 6de03067 PTE 0 Oops: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 PID: 7458 Comm: syz-executor.7 Not tainted 6.1.0-rc4-next-20221111 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:get_desc+0x128/0x460 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:ffff888042837bf8 EFLAGS: 00010216 RAX: 1fffffcd39f02e06 RBX: fffffe69cf817030 RCX: 0000000000000001 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000006 RBP: ffff888042837cb8 R08: 0000000000000006 R09: 000000000000007f R10: 0000000000000030 R11: 0000000000000001 R12: 1ffff11008506f7f R13: dffffc0000000000 R14: 0000000000000000 R15: 000000000000007f FS: 00007f3adf348700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffbcd39f02e06 CR3: 000000003cb0c000 CR4: 0000000000350ef4 Call Trace: insn_get_code_seg_params+0xab/0x1b0 insn_decode_from_regs+0x72/0x190 fixup_umip_exception+0xcb/0x6d0 exc_general_protection+0x161/0x220 asm_exc_general_protection+0x26/0x30 RIP: 0033:0x7ffed9dee946 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:00007f3adf348150 EFLAGS: 00010246 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000001 RDX: 0000000000000002 RSI: 00007f3adf3481f0 RDI: 0000000000000001 RBP: 00007f3adf348170 R08: 0000000000000000 R09: 00007ffed9dea080 R10: 00007ffed9dea090 R11: 0000000000061804 R12: 00007f3adf3481f0 R13: 00007ffed9d2c71f R14: 00007f3adf348300 R15: 0000000000022000 Modules linked in: CR2: fffffbcd39f02e06 ---[ end trace 0000000000000000 ]--- RIP: 0010:get_desc+0x128/0x460 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:ffff888042837bf8 EFLAGS: 00010216 RAX: 1fffffcd39f02e06 RBX: fffffe69cf817030 RCX: 0000000000000001 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000006 RBP: ffff888042837cb8 R08: 0000000000000006 R09: 000000000000007f R10: 0000000000000030 R11: 0000000000000001 R12: 1ffff11008506f7f R13: dffffc0000000000 R14: 0000000000000000 R15: 000000000000007f FS: 00007f3adf348700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffbcd39f02e06 CR3: 000000003cb0c000 CR4: 0000000000350ef4 device syz_tun entered promiscuous mode device syz_tun left promiscuous mode device syz_tun entered promiscuous mode device syz_tun left promiscuous mode syz-executor.4: attempt to access beyond end of device loop4: rw=2049, sector=40, nr_sectors = 4 limit=40 buffer_io_error: 38 callbacks suppressed Buffer I/O error on dev loop4, logical block 10, lost async page write syz-executor.4: attempt to access beyond end of device loop4: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop4, logical block 10, lost async page write audit: type=1326 audit(1668165418.502:13): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=7448 comm="syz-executor.7" exe="/syz-executor.7" sig=9 arch=c000003e syscall=231 compat=0 ip=0x7f3ae1dd2b19 code=0x0 device syz_tun entered promiscuous mode device syz_tun entered promiscuous mode loop4: detected capacity change from 0 to 40 BUG: unable to handle page fault for address: fffffbcd39f02e06 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 6dfd0067 P4D 6dfd0067 PUD 6de04067 PMD 6de03067 PTE 0 Oops: 0000 [#2] PREEMPT SMP KASAN NOPTI CPU: 0 PID: 7492 Comm: syz-executor.7 Tainted: G D 6.1.0-rc4-next-20221111 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:get_desc+0x128/0x460 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:ffff888043a6fbf8 EFLAGS: 00010216 RAX: 1fffffcd39f02e06 RBX: fffffe69cf817030 RCX: 0000000000000001 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000006 RBP: ffff888043a6fcb8 R08: 0000000000000006 R09: 000000000000007f R10: 0000000000000030 R11: 0000000000000001 R12: 1ffff1100874df7f R13: dffffc0000000000 R14: 0000000000000000 R15: 000000000000007f FS: 00007f3adf348700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffbcd39f02e06 CR3: 000000003cb0c000 CR4: 0000000000350ef4 Call Trace: insn_get_code_seg_params+0xab/0x1b0 insn_decode_from_regs+0x72/0x190 fixup_umip_exception+0xcb/0x6d0 exc_general_protection+0x161/0x220 asm_exc_general_protection+0x26/0x30 RIP: 0033:0x7ffed9dee946 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:00007f3adf348150 EFLAGS: 00010246 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000001 RDX: 0000000000000002 RSI: 00007f3adf3481f0 RDI: 0000000000000001 RBP: 00007f3adf348170 R08: 0000000000000000 R09: 00007ffed9dea080 R10: 00007ffed9dea090 R11: 0000000000061f3a R12: 00007f3adf3481f0 R13: 00007ffed9d2c71f R14: 00007f3adf348300 R15: 0000000000022000 Modules linked in: CR2: fffffbcd39f02e06 ---[ end trace 0000000000000000 ]--- RIP: 0010:get_desc+0x128/0x460 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:ffff888042837bf8 EFLAGS: 00010216 RAX: 1fffffcd39f02e06 RBX: fffffe69cf817030 RCX: 0000000000000001 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000006 RBP: ffff888042837cb8 R08: 0000000000000006 R09: 000000000000007f R10: 0000000000000030 R11: 0000000000000001 R12: 1ffff11008506f7f R13: dffffc0000000000 R14: 0000000000000000 R15: 000000000000007f FS: 00007f3adf348700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffbcd39f02e06 CR3: 000000003cb0c000 CR4: 0000000000350ef4 device syz_tun left promiscuous mode device syz_tun entered promiscuous mode device syz_tun left promiscuous mode device syz_tun left promiscuous mode device syz_tun entered promiscuous mode BUG: unable to handle page fault for address: fffffbcd39f02e06 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 6dfd0067 P4D 6dfd0067 PUD 6de04067 PMD 6de03067 PTE 0 Oops: 0000 [#3] PREEMPT SMP KASAN NOPTI CPU: 0 PID: 7506 Comm: syz-executor.7 Tainted: G D 6.1.0-rc4-next-20221111 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:get_desc+0x128/0x460 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:ffff8880439bfbf8 EFLAGS: 00010216 RAX: 1fffffcd39f02e06 RBX: fffffe69cf817030 RCX: 0000000000000001 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000006 RBP: ffff8880439bfcb8 R08: 0000000000000006 R09: 000000000000007f R10: 0000000000000030 R11: 0000000000000001 R12: 1ffff11008737f7f R13: dffffc0000000000 R14: 0000000000000000 R15: 000000000000007f FS: 00007f3adf348700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffbcd39f02e06 CR3: 000000003cb0c000 CR4: 0000000000350ef4 Call Trace: insn_get_code_seg_params+0xab/0x1b0 loop1: detected capacity change from 0 to 40 insn_decode_from_regs+0x72/0x190 fixup_umip_exception+0xcb/0x6d0 loop2: detected capacity change from 0 to 40 loop4: detected capacity change from 0 to 40 exc_general_protection+0x161/0x220 asm_exc_general_protection+0x26/0x30 RIP: 0033:0x7ffed9dee946 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:00007f3adf348150 EFLAGS: 00010246 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000001 RDX: 0000000000000002 RSI: 00007f3adf3481f0 RDI: 0000000000000001 RBP: 00007f3adf348170 R08: 0000000000000000 R09: 00007ffed9dea080 R10: 00007ffed9dea090 R11: 00000000000626ec R12: 00007f3adf3481f0 R13: 00007ffed9d2c71f R14: 00007f3adf348300 R15: 0000000000022000 Modules linked in: CR2: fffffbcd39f02e06 ---[ end trace 0000000000000000 ]--- RIP: 0010:get_desc+0x128/0x460 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:ffff888042837bf8 EFLAGS: 00010216 RAX: 1fffffcd39f02e06 RBX: fffffe69cf817030 RCX: 0000000000000001 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000006 RBP: ffff888042837cb8 R08: 0000000000000006 R09: 000000000000007f R10: 0000000000000030 R11: 0000000000000001 R12: 1ffff11008506f7f R13: dffffc0000000000 R14: 0000000000000000 R15: 000000000000007f FS: 00007f3adf348700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffbcd39f02e06 CR3: 000000003cb0c000 CR4: 0000000000350ef4 device syz_tun entered promiscuous mode device syz_tun left promiscuous mode device syz_tun left promiscuous mode device syz_tun entered promiscuous mode device syz_tun entered promiscuous mode device syz_tun left promiscuous mode device syz_tun left promiscuous mode syz-executor.1: attempt to access beyond end of device loop1: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop1, logical block 10, lost async page write syz-executor.2: attempt to access beyond end of device loop2: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop2, logical block 10, lost async page write loop4: detected capacity change from 0 to 40 loop1: detected capacity change from 0 to 40 BUG: unable to handle page fault for address: fffffbcd39f02e06 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 6dfd0067 P4D 6dfd0067 PUD 6de04067 PMD 6de03067 PTE 0 Oops: 0000 [#4] PREEMPT SMP KASAN NOPTI CPU: 0 PID: 7536 Comm: syz-executor.7 Tainted: G D 6.1.0-rc4-next-20221111 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:get_desc+0x128/0x460 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:ffff888042fefbf8 EFLAGS: 00010216 RAX: 1fffffcd39f02e06 RBX: fffffe69cf817030 RCX: 0000000000000001 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000006 RBP: ffff888042fefcb8 R08: 0000000000000006 R09: 000000000000007f R10: 0000000000000030 R11: 0000000000000001 R12: 1ffff110085fdf7f R13: dffffc0000000000 R14: 0000000000000000 R15: 000000000000007f FS: 00007f3adf348700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffbcd39f02e06 CR3: 0000000015760000 CR4: 0000000000350ef4 Call Trace: insn_get_code_seg_params+0xab/0x1b0 insn_decode_from_regs+0x72/0x190 fixup_umip_exception+0xcb/0x6d0 exc_general_protection+0x161/0x220 asm_exc_general_protection+0x26/0x30 RIP: 0033:0x7ffed9dee946 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:00007f3adf348150 EFLAGS: 00010246 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000001 RDX: 0000000000000002 RSI: 00007f3adf3481f0 RDI: 0000000000000001 RBP: 00007f3adf348170 R08: 0000000000000000 R09: 00007ffed9dea080 R10: 00007ffed9dea090 R11: 0000000000063abe R12: 00007f3adf3481f0 R13: 00007ffed9d2c71f R14: 00007f3adf348300 R15: 0000000000022000 Modules linked in: CR2: fffffbcd39f02e06 ---[ end trace 0000000000000000 ]--- RIP: 0010:get_desc+0x128/0x460 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:ffff888042837bf8 EFLAGS: 00010216 RAX: 1fffffcd39f02e06 RBX: fffffe69cf817030 RCX: 0000000000000001 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000006 RBP: ffff888042837cb8 R08: 0000000000000006 R09: 000000000000007f R10: 0000000000000030 R11: 0000000000000001 R12: 1ffff11008506f7f R13: dffffc0000000000 R14: 0000000000000000 R15: 000000000000007f FS: 00007f3adf348700(0000) GS:ffff88806d000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffbcd39f02e06 CR3: 0000000015760000 CR4: 0000000000350ef4 loop2: detected capacity change from 0 to 40 device syz_tun entered promiscuous mode device syz_tun left promiscuous mode device syz_tun entered promiscuous mode device syz_tun entered promiscuous mode device syz_tun entered promiscuous mode device syz_tun left promiscuous mode device syz_tun left promiscuous mode syz-executor.2: attempt to access beyond end of device loop2: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop2, logical block 10, lost async page write syz-executor.4: attempt to access beyond end of device loop4: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop4, logical block 10, lost async page write device syz_tun entered promiscuous mode device syz_tun entered promiscuous mode device syz_tun left promiscuous mode device syz_tun left promiscuous mode loop2: detected capacity change from 0 to 40 syz-executor.2: attempt to access beyond end of device loop2: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop2, logical block 10, lost async page write device syz_tun left promiscuous mode device syz_tun entered promiscuous mode loop1: detected capacity change from 0 to 40 device syz_tun left promiscuous mode device syz_tun entered promiscuous mode device syz_tun left promiscuous mode syz-executor.1: attempt to access beyond end of device loop1: rw=2049, sector=40, nr_sectors = 4 limit=40 Buffer I/O error on dev loop1, logical block 10, lost async page write sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 blk_print_req_error: 25 callbacks suppressed I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 4 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 0, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 1 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 1, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 2 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 2, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 3 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 3, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 4 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 4, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 5 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 5, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 6 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 6, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 7 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 7, async page read loop0: detected capacity change from 0 to 2048 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 4 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer Buffer I/O error on dev sr0, logical block 0, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer EXT4-fs (loop0): unmounting filesystem. loop0: detected capacity change from 0 to 2048 EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. EXT4-fs: Invalid commit interval -1, must be smaller than 2147483 EXT4-fs: Invalid commit interval -1, must be smaller than 2147483 UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 EXT4-fs (loop0): unmounting filesystem. loop0: detected capacity change from 0 to 2048 EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. EXT4-fs (loop0): unmounting filesystem. UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 loop0: detected capacity change from 0 to 2048 EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. ---------------- Code disassembly (best guess): 0: e2 02 loop 0x4 2: 00 00 add %al,(%rax) 4: 83 e0 07 and $0x7,%eax 7: 38 c2 cmp %al,%dl 9: 0f 9e c1 setle %cl c: 84 d2 test %dl,%dl e: 0f 95 c0 setne %al 11: 84 c1 test %al,%cl 13: 0f 85 cd 02 00 00 jne 0x2e6 19: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 20: fc ff df 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 0f b6 0c 10 movzbl (%rax,%rdx,1),%ecx <-- trapping instruction 2e: 48 8d 43 07 lea 0x7(%rbx),%rax 32: 48 89 c6 mov %rax,%rsi 35: 48 c1 ee 03 shr $0x3,%rsi 39: 0f b6 14 16 movzbl (%rsi,%rdx,1),%edx 3d: 48 89 de mov %rbx,%rsi