UBSAN: array-index-out-of-bounds in dbAdjTree

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	UBSAN: array-index-out-of-bounds in dbAdjTree jfs	C	error	error	41	323d	801d	25/28	fixed on 2024/01/30 15:47
upstream	UBSAN: array-index-out-of-bounds in dbAdjTree (2) jfs	C	inconclusive		77	15d	201d	25/28	upstream: reported C repro on 2024/05/18 12:29
linux-4.14	KASAN: slab-out-of-bounds Read in dbAdjTree	C			3	647d	794d	0/1	upstream: reported C repro on 2022/10/03 00:17
linux-4.19	KASAN: use-after-free Read in dbAdjTree	C		error	5	649d	766d	0/1	upstream: reported C repro on 2022/10/31 14:16

================================================================================ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2968:18 index -3 is out of range for type 's8[1365]' (aka 'signed char[1365]') CPU: 1 PID: 4922 Comm: syz.4.154 Not tainted 5.15.170-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:151 [inline] __ubsan_handle_out_of_bounds+0x118/0x140 lib/ubsan.c:282 dbAdjTree+0x377/0x520 fs/jfs/jfs_dmap.c:2968 dbAllocBits+0x4e5/0x9a0 fs/jfs/jfs_dmap.c:2259 dbAllocDmap+0x6d/0x150 fs/jfs/jfs_dmap.c:2100 dbAlloc+0x505/0xc90 fs/jfs/jfs_dmap.c:816 extBalloc fs/jfs/jfs_extent.c:523 [inline] extAlloc+0x4f4/0x1000 fs/jfs/jfs_extent.c:125 jfs_get_block+0x417/0xe50 fs/jfs/inode.c:258 nobh_write_begin+0x398/0xda0 fs/buffer.c:2650 jfs_write_begin+0x3e/0x80 fs/jfs/inode.c:322 generic_perform_write+0x2bf/0x5b0 mm/filemap.c:3785 __generic_file_write_iter+0x243/0x4f0 mm/filemap.c:3912 generic_file_write_iter+0xa7/0x1b0 mm/filemap.c:3944 __kernel_write+0x5b1/0xa60 fs/read_write.c:539 __dump_emit+0x264/0x3a0 fs/coredump.c:875 dump_user_range+0x91/0x320 fs/coredump.c:949 elf_core_dump+0x3c7d/0x4570 fs/binfmt_elf.c:2285 do_coredump+0x1852/0x31e0 fs/coredump.c:826 get_signal+0xc06/0x14e0 kernel/signal.c:2886 arch_do_signal_or_restart+0xc3/0x1890 arch/x86/kernel/signal.c:867 handle_signal_work kernel/entry/common.c:154 [inline] exit_to_user_mode_loop+0x97/0x130 kernel/entry/common.c:178 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f4846ee6719 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffff5e3ffc8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: 00000000000000ca RBX: 00007f484709df88 RCX: 00007f4846ee6719 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f484709df88 RBP: 00007f484709df8c R08: 0000000000000000 R09: 00007ffff5e402bf R10: 00007f484709df80 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f484709df80 R14: 0000000000000005 R15: 00000000000011e4 </TASK> ================================================================================

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2024/11/04 07:07	linux-5.15.y	72244eab0dad	f00eed24	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	UBSAN: array-index-out-of-bounds in dbAdjTree

Crashes (1):

Assets (help?)