ci starts bisection 2022-08-23 18:24:51.987178957 +0000 UTC m=+30196.924492201 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: d90d2540e8568f0e464d9b0049fb00c8aabaf278e721d5b3c418063cd3163fdb all runs: crashed: UBSAN: shift-out-of-bounds in minix_statfs testing current HEAD 072e51356cd5a4a1c12c1020bc054c99b98333df testing commit 072e51356cd5a4a1c12c1020bc054c99b98333df compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: e34903856dd0d6594bb1f84a2f9179a00e0db248be2948cc486a12aad85d1cd2 all runs: crashed: UBSAN: shift-out-of-bounds in minix_statfs revisions tested: 2, total time: 21m5.169885401s (build: 13m13.738161563s, test: 7m18.482152137s) the crash still happens on HEAD commit msg: Merge tag 'nfs-for-5.20-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs 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: 4104 Comm: syz-executor.0 Not tainted 6.0.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 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: 0033:0x7ffa20a89109 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:00007ffa21be7168 EFLAGS: 00000246 ORIG_RAX: 000000000000008a RAX: ffffffffffffffda RBX: 00007ffa20b9bf60 RCX: 00007ffa20a89109 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007ffa20ae305d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff7068c5af R14: 00007ffa21be7300 R15: 0000000000022000 ================================================================================