ci starts bisection 2022-11-26 03:02:23.242343724 +0000 UTC m=+80349.358926972 bisecting fixing commit since 49c13ed0316d55d73f1c81c66a7e2abd743f9ae6 building syzkaller on e2556bc3d5922d083190922a5f66f1db91687492 ensuring issue is reproducible on original commit 49c13ed0316d55d73f1c81c66a7e2abd743f9ae6 testing commit 49c13ed0316d55d73f1c81c66a7e2abd743f9ae6 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: f5fe46781db533787d79bfef3a4edce2b84caf7b14ec9df740dd7c626092e00a all runs: crashed: UBSAN: shift-out-of-bounds in diFree testing current HEAD 644e9524388a5dbc6d4f58c492ee9ef7bd4ddf4d testing commit 644e9524388a5dbc6d4f58c492ee9ef7bd4ddf4d gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: c1a6fda64326cdc82df00fe26f70c25538a94fbbad726fdd36ad64e878fe83b9 all runs: crashed: UBSAN: shift-out-of-bounds in diFree revisions tested: 2, total time: 21m7.325050605s (build: 13m51.434083404s, test: 6m7.849266002s) the crash still happens on HEAD commit msg: Merge tag 'for-v6.1-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply crash: UBSAN: shift-out-of-bounds in diFree ERROR: (device loop0): xtTruncate: XT_GETPAGE: xtree page corrupt ================================================================================ UBSAN: shift-out-of-bounds in fs/jfs/jfs_imap.c:881:9 shift exponent 8205 is too large for 64-bit type 'long long unsigned int' CPU: 1 PID: 4037 Comm: syz-executor.0 Not tainted 6.1.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x57/0x7d lib/dump_stack.c:106 ubsan_epilogue+0x5/0x36 lib/ubsan.c:151 __ubsan_handle_shift_out_of_bounds.cold+0x61/0xef lib/ubsan.c:322 diFree.cold+0x16/0x61 fs/jfs/jfs_imap.c:881 jfs_evict_inode+0x331/0x420 fs/jfs/inode.c:156 evict+0x296/0x5d0 fs/inode.c:664 __dentry_kill+0x315/0x560 fs/dcache.c:607 shrink_dentry_list+0x1c5/0x660 fs/dcache.c:1201 shrink_dcache_parent+0x178/0x2a0 fs/dcache.c:1652 do_one_tree fs/dcache.c:1682 [inline] shrink_dcache_for_umount+0x5c/0x2e0 fs/dcache.c:1699 generic_shutdown_super+0x5c/0x3b0 fs/super.c:473 kill_block_super+0x90/0xd0 fs/super.c:1428 deactivate_locked_super+0x7b/0x130 fs/super.c:332 cleanup_mnt+0x253/0x360 fs/namespace.c:1186 task_work_run+0x12b/0x220 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:203 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:296 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fb08d28ba17 Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffff9120db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fb08d28ba17 RDX: 00007ffff9120e89 RSI: 000000000000000a RDI: 00007ffff9120e80 RBP: 00007ffff9120e80 R08: 00000000ffffffff R09: 00007ffff9120c50 R10: 0000555556fe48b3 R11: 0000000000000246 R12: 00007fb08d2e45d6 R13: 00007ffff9121f40 R14: 0000555556fe4810 R15: 00007ffff9121f80 ================================================================================