UBSAN: shift-out-of-bounds in dbJoin

Title	Replies (including bot)	Last reply
[syzbot] UBSAN: shift-out-of-bounds in dbJoin	0 (1)	2022/10/10 07:16

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2022/10/10 07:16


Created	Duration	User	Repo	Result
2023/05/26 04:45	20m	bisect fix	upstream	job log (0) log
2023/04/25 21:57	32m	bisect fix	upstream	job log (0) log
2023/03/26 19:30	2h01m	bisect fix	upstream	job log (0) log
2023/02/24 08:31	21m	bisect fix	upstream	job log (0) log
2023/01/25 07:54	37m	bisect fix	upstream	job log (0) log

================================================================================ UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:2760:11 shift exponent 78 is too large for 32-bit type 'int' CPU: 1 PID: 119 Comm: jfsCommit Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 ubsan_epilogue+0xb/0x50 lib/ubsan.c:151 __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x187 lib/ubsan.c:322 dbJoin.cold+0x19/0x1e fs/jfs/jfs_dmap.c:2760 dbAdjCtl+0x703/0x900 fs/jfs/jfs_dmap.c:2500 dbFreeDmap+0xd3/0x1a0 fs/jfs/jfs_dmap.c:2064 dbFree+0x250/0x540 fs/jfs/jfs_dmap.c:379 txFreeMap+0x70a/0xd70 fs/jfs/jfs_txnmgr.c:2510 xtTruncate+0x1d2a/0x2720 fs/jfs/jfs_xtree.c:2467 jfs_free_zero_link+0x33b/0x4a0 fs/jfs/namei.c:758 jfs_evict_inode+0x40f/0x4a0 fs/jfs/inode.c:153 evict+0x2ed/0x6b0 fs/inode.c:664 iput_final fs/inode.c:1747 [inline] iput.part.0+0x55d/0x810 fs/inode.c:1773 iput+0x58/0x70 fs/inode.c:1763 txUpdateMap+0x97c/0xc50 fs/jfs/jfs_txnmgr.c:2362 txLazyCommit fs/jfs/jfs_txnmgr.c:2659 [inline] jfs_lazycommit+0x5bb/0xaa0 fs/jfs/jfs_txnmgr.c:2727 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 </TASK> ================================================================================

Crashes (3):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	Assets	Manager	Title
2022/10/15 13:34	upstream	55be6084c8e0	67cb024c	.config	strace log	report	syz	C	[disk image] [vmlinux] [mounted in repro]	ci-upstream-kasan-gce-root	UBSAN: shift-out-of-bounds in dbJoin
2022/10/08 19:46	upstream	62e6e5940c0c	aea5da89	.config	strace log	report	syz	C	[disk image] [vmlinux] [mounted in repro]	ci2-upstream-fs	UBSAN: shift-out-of-bounds in dbJoin
2022/11/12 21:27	linux-next	f8f60f322f06	3ead01ad	.config	strace log	report	syz	C	[disk image] [vmlinux] [kernel image] [mounted in repro]	ci-upstream-linux-next-kasan-gce-root	UBSAN: shift-out-of-bounds in dbJoin

Crashes (3):