ci starts bisection 2022-07-24 18:02:23.744169093 +0000 UTC m=+199017.185774409 bisecting fixing commit since 92f20ff72066d8d7e2ffb655c2236259ac9d1c5d building syzkaller on a5dbd430e216c19b40593c047b622c3a8149a41d testing commit 92f20ff72066d8d7e2ffb655c2236259ac9d1c5d compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 474835400b05086021f0b42e42d75e77c7560cd3371fd7dcada9927d282eb3d7 all runs: crashed: UBSAN: shift-out-of-bounds in minix_statfs testing current HEAD af2c9ac24019ece9281e606662e5c78fa67f5930 testing commit af2c9ac24019ece9281e606662e5c78fa67f5930 compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 1dcd69e94aee139601a21bb5e0ca183631094e165d8aead036b6112851582bc6 run #0: crashed: UBSAN: shift-out-of-bounds in minix_statfs run #1: crashed: UBSAN: shift-out-of-bounds in minix_statfs run #2: crashed: UBSAN: shift-out-of-bounds in minix_statfs run #3: crashed: UBSAN: shift-out-of-bounds in minix_statfs run #4: crashed: UBSAN: shift-out-of-bounds in minix_statfs run #5: crashed: UBSAN: shift-out-of-bounds in minix_statfs run #6: crashed: SYZFATAL: executor failed NUM times: executor NUM: exit status NUM run #7: crashed: UBSAN: shift-out-of-bounds in minix_statfs run #8: crashed: SYZFATAL: executor failed NUM times: executor NUM: failed to write control pipe: write |NUM: broken pipe run #9: crashed: UBSAN: shift-out-of-bounds in minix_statfs revisions tested: 2, total time: 22m10.411654349s (build: 14m57.424284998s, test: 6m39.811644162s) the crash still happens on HEAD commit msg: Merge tag 'perf_urgent_for_v5.19_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip crash: UBSAN: shift-out-of-bounds in minix_statfs ================================================================================ UBSAN: shift-out-of-bounds in fs/minix/inode.c:380:57 shift exponent 65510 is too large for 64-bit type 'long unsigned int' CPU: 1 PID: 4122 Comm: syz-executor.0 Not tainted 5.19.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 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 minix_statfs.cold+0x16/0x1f fs/minix/inode.c:380 statfs_by_dentry+0x11b/0x1e0 fs/statfs.c:66 vfs_statfs fs/statfs.c:90 [inline] fd_statfs+0x41/0xb0 fs/statfs.c:120 __do_sys_fstatfs+0x6b/0xc0 fs/statfs.c:216 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7feea6c89109 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007feea7d58168 EFLAGS: 00000246 ORIG_RAX: 000000000000008a RAX: ffffffffffffffda RBX: 00007feea6d9bf60 RCX: 00007feea6c89109 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007feea6ce305d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcf691a31f R14: 00007feea7d58300 R15: 0000000000022000 ================================================================================