general protection fault in bfs_get

Date	Name	Commit	Repro	Result
2023/05/06	upstream (ToT)	418d5c98319f	C	[report] WARNING in mark_buffer_dirty

Date

Name

Commit

Repro

Result

2023/05/06

upstream (ToT)

418d5c98319f

[report] WARNING in mark_buffer_dirty

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	general protection fault in bfs_get_block bfs				2	535d	571d	0/27	auto-obsoleted due to no activity on 2023/07/13 12:29
upstream	general protection fault in bfs_get_block (2) bfs	C	error	done	2	261d	280d	25/27	fixed on 2024/01/30 15:47

upstream

general protection fault in bfs_get_block bfs

535d

571d

0/27

auto-obsoleted due to no activity on 2023/07/13 12:29

upstream

general protection fault in bfs_get_block (2) bfs

error

done

261d

280d

25/27

fixed on 2024/01/30 15:47


Created	Duration	User	Repo	Result
2024/07/30 20:46	1h03m	bisect fix	linux-6.1.y	OK (0) job log log
2024/06/13 13:48	2h22m	bisect fix	linux-6.1.y	OK (0) job log log
2024/05/14 05:20	1h24m	bisect fix	linux-6.1.y	OK (0) job log log
2024/04/07 10:02	1h43m	bisect fix	linux-6.1.y	OK (0) job log log
2024/03/07 22:56	1h16m	bisect fix	linux-6.1.y	OK (0) job log log
2024/01/29 15:54	1h16m	bisect fix	linux-6.1.y	OK (0) job log log
2023/12/27 16:27	1h02m	bisect fix	linux-6.1.y	OK (0) job log log
2023/11/26 16:18	1h09m	bisect fix	linux-6.1.y	OK (0) job log log
2023/10/25 16:22	2h28m	bisect fix	linux-6.1.y	OK (0) job log log
2023/09/19 04:46	1h06m	bisect fix	linux-6.1.y	OK (0) job log log
2023/07/05 07:12	1h24m	bisect fix	linux-6.1.y	OK (0) job log log
2023/06/01 23:43	45m	bisect fix	linux-6.1.y	OK (0) job log log
2023/05/02 04:09	37m	bisect fix	linux-6.1.y	OK (0) job log log

general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] CPU: 0 PID: 3652 Comm: syz-executor319 Not tainted 6.1.22-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 RIP: 0010:bfs_move_block fs/bfs/file.c:42 [inline] RIP: 0010:bfs_move_blocks fs/bfs/file.c:56 [inline] RIP: 0010:bfs_get_block+0x7f4/0xac0 fs/bfs/file.c:125 Code: 08 4c 89 f7 e8 dd 61 86 ff 41 8b 16 48 89 ef 48 89 de b9 08 00 00 00 e8 fa 3c a5 ff 49 89 c6 48 8d 58 28 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 ad 61 86 ff 48 8b 2b 49 8d 7d 28 RSP: 0018:ffffc90003d5eaf8 EFLAGS: 00010206 RAX: 0000000000000005 RBX: 0000000000000028 RCX: ffff88807ade57c0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff888012844d00 R08: ffffffff81ff0664 R09: fffff94000388077 R10: 0000000000000000 R11: dffffc0000000001 R12: 000000000000002a R13: ffff88807153e488 R14: 0000000000000000 R15: dffffc0000000000 FS: 0000555556d31300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000077bfc000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __block_write_begin_int+0x544/0x1a30 fs/buffer.c:1991 __block_write_begin fs/buffer.c:2041 [inline] block_write_begin+0x98/0x1f0 fs/buffer.c:2102 bfs_write_begin+0x31/0xd0 fs/bfs/file.c:177 generic_perform_write+0x2fc/0x5e0 mm/filemap.c:3754 __generic_file_write_iter+0x176/0x400 mm/filemap.c:3882 generic_file_write_iter+0xab/0x310 mm/filemap.c:3914 __kernel_write_iter+0x2ff/0x710 fs/read_write.c:517 __kernel_write+0x11c/0x170 fs/read_write.c:537 __dump_emit+0x232/0x350 fs/coredump.c:804 writenote+0x21d/0x3b0 fs/binfmt_elf.c:1488 write_note_info fs/binfmt_elf.c:1956 [inline] elf_core_dump+0x30df/0x45b0 fs/binfmt_elf.c:2299 do_coredump+0x18b7/0x2700 fs/coredump.c:755 get_signal+0x1454/0x17d0 kernel/signal.c:2844 arch_do_signal_or_restart+0xb0/0x1a10 arch/x86/kernel/signal.c:869 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204 irqentry_exit_to_user_mode+0x5/0x30 kernel/entry/common.c:310 exc_page_fault+0x4e0/0x790 arch/x86/mm/fault.c:1578 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:570 RIP: 0033:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 002b:0000000020000008 EFLAGS: 00010217 RAX: 0000000000000000 RBX: 0000000000000015 RCX: 00007facd9d13f69 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000000 RBP: 00007fffd23e0118 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd23e0140 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:bfs_move_block fs/bfs/file.c:42 [inline] RIP: 0010:bfs_move_blocks fs/bfs/file.c:56 [inline] RIP: 0010:bfs_get_block+0x7f4/0xac0 fs/bfs/file.c:125 Code: 08 4c 89 f7 e8 dd 61 86 ff 41 8b 16 48 89 ef 48 89 de b9 08 00 00 00 e8 fa 3c a5 ff 49 89 c6 48 8d 58 28 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 ad 61 86 ff 48 8b 2b 49 8d 7d 28 RSP: 0018:ffffc90003d5eaf8 EFLAGS: 00010206 RAX: 0000000000000005 RBX: 0000000000000028 RCX: ffff88807ade57c0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff888012844d00 R08: ffffffff81ff0664 R09: fffff94000388077 R10: 0000000000000000 R11: dffffc0000000001 R12: 000000000000002a R13: ffff88807153e488 R14: 0000000000000000 R15: dffffc0000000000 FS: 0000555556d31300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fffd23dffe8 CR3: 0000000077bfc000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 08 4c 89 f7 or %cl,-0x9(%rcx,%rcx,4) 4: e8 dd 61 86 ff callq 0xff8661e6 9: 41 8b 16 mov (%r14),%edx c: 48 89 ef mov %rbp,%rdi f: 48 89 de mov %rbx,%rsi 12: b9 08 00 00 00 mov $0x8,%ecx 17: e8 fa 3c a5 ff callq 0xffa53d16 1c: 49 89 c6 mov %rax,%r14 1f: 48 8d 58 28 lea 0x28(%rax),%rbx 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 38 00 cmpb $0x0,(%rax,%r15,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 48 89 df mov %rbx,%rdi 34: e8 ad 61 86 ff callq 0xff8661e6 39: 48 8b 2b mov (%rbx),%rbp 3c: 49 8d 7d 28 lea 0x28(%r13),%rdi

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2023/04/02 00:45	linux-6.1.y	3b29299e5f60	f325deb0	.config	console log	report	syz	C		[disk image] [vmlinux] [kernel image] [mounted in repro]	ci2-linux-6-1-kasan	general protection fault in bfs_get_block

Crashes (1):

Assets (help?)