ci starts bisection 2023-04-22 22:54:34.494611036 +0000 UTC m=+218669.277271139
bisecting fixing commit since e4cf7c25bae5c3b5089a3c23a897f450149caef2
building syzkaller on ab32d50881df9f96f2af301aadca62ad00b7e099
ensuring issue is reproducible on original commit e4cf7c25bae5c3b5089a3c23a897f450149caef2

testing commit e4cf7c25bae5c3b5089a3c23a897f450149caef2 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: c5ac9d1480929194ae499fed15599da882b0e574427ed0dc12bfad3a9d674e42
all runs: crashed: UBSAN: shift-out-of-bounds in minix_statfs
testing current HEAD 2caeeb9d4a1bccd923b7918427f9e9ef7151ddd8
testing commit 2caeeb9d4a1bccd923b7918427f9e9ef7151ddd8 gcc
compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 1c880418215a277869ae80b766f8840454a1bcbb90cebfbe2d0a16c6796074c4
all runs: crashed: UBSAN: shift-out-of-bounds in minix_statfs
revisions tested: 2, total time: 23m44.859073254s (build: 17m25.646299124s, test: 5m45.527595932s)
the crash still happens on HEAD
commit msg: Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
crash: UBSAN: shift-out-of-bounds in minix_statfs
loop0: detected capacity change from 0 to 256
================================================================================
UBSAN: shift-out-of-bounds in fs/minix/inode.c:380:57
shift exponent 1792 is too large for 64-bit type 'long unsigned int'
CPU: 0 PID: 5593 Comm: syz-executor.0 Not tainted 6.3.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x8e/0xb0 lib/dump_stack.c:106
 ubsan_epilogue lib/ubsan.c:217 [inline]
 __ubsan_handle_shift_out_of_bounds+0x15a/0x2f0 lib/ubsan.c:387
 minix_statfs.cold+0x16/0x1f fs/minix/inode.c:380
 statfs_by_dentry+0x11b/0x1e0 fs/statfs.c:66
 vfs_statfs+0x35/0x80 fs/statfs.c:90
 ovl_check_namelen+0x75/0x100 fs/overlayfs/super.c:919
 ovl_get_upper fs/overlayfs/super.c:1131 [inline]
 ovl_fill_super+0x11e5/0x5e70 fs/overlayfs/super.c:1986
 mount_nodev+0x40/0xd0 fs/super.c:1426
 legacy_get_tree+0xfe/0x1f0 fs/fs_context.c:610
 vfs_get_tree+0x83/0x320 fs/super.c:1510
 do_new_mount fs/namespace.c:3042 [inline]
 path_mount+0x82d/0x1a30 fs/namespace.c:3372
 do_mount fs/namespace.c:3385 [inline]
 __do_sys_mount fs/namespace.c:3594 [inline]
 __se_sys_mount fs/namespace.c:3571 [inline]
 __x64_sys_mount+0x1f9/0x270 fs/namespace.c:3571
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fce00c8c0a9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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:00007fce0192b168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fce00dabf80 RCX: 00007fce00c8c0a9
RDX: 0000000020000080 RSI: 0000000020000040 RDI: 0000000000000000
RBP: 00007fce00ce7ae9 R08: 0000000020000340 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe6169bddf R14: 00007fce0192b300 R15: 0000000000022000
 </TASK>
================================================================================