ci2 starts bisection 2023-03-09 18:29:19.106087526 +0000 UTC m=+39948.672695265
bisecting fixing commit since c73b4619ad86a2a29fc998e950e98bcdfa2f6d8f
building syzkaller on 1dac8c7a01e2bdd35cb04eb4901ddb157291ac2d
ensuring issue is reproducible on original commit c73b4619ad86a2a29fc998e950e98bcdfa2f6d8f

testing commit c73b4619ad86a2a29fc998e950e98bcdfa2f6d8f gcc
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 8c5d7b6afc23e55457ed6ac32f373baa2835d2e63114812a0c1d7dca856630ab
all runs: crashed: UBSAN: shift-out-of-bounds in parse_options
testing current HEAD 5448b2fda85f2d90de03f053226f721ba2f7e731
testing commit 5448b2fda85f2d90de03f053226f721ba2f7e731 gcc
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: e44b312bde0c89559be7f0c562c70a43ff3582fa64abd8e3188110062f4e4e06
all runs: crashed: UBSAN: shift-out-of-bounds in parse_options
revisions tested: 2, total time: 45m26.688646543s (build: 24m49.028739423s, test: 18m50.203906375s)
the crash still happens on HEAD
commit msg: Merge 5.15.94 into android13-5.15-lts
crash: UBSAN: shift-out-of-bounds in parse_options
loop0: detected capacity change from 0 to 2048
================================================================================
UBSAN: shift-out-of-bounds in fs/ext4/super.c:2491:15
shift exponent 149664 is too large for 32-bit type 'int'
CPU: 1 PID: 944 Comm: syz-executor.0 Not tainted 5.15.94-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x105/0x148 lib/dump_stack.c:106
 dump_stack+0x10/0x12 lib/dump_stack.c:113
 ubsan_epilogue lib/ubsan.c:151 [inline]
 __ubsan_handle_shift_out_of_bounds+0x27f/0x2b0 lib/ubsan.c:321
 parse_options+0x26bd/0x2740 fs/ext4/super.c:2491
 ext4_fill_super+0x1a4b/0x85d0 fs/ext4/super.c:4167
 mount_bdev+0x22c/0x330 fs/super.c:1369
 ext4_mount+0x10/0x20 fs/ext4/super.c:6564
 legacy_get_tree+0xeb/0x180 fs/fs_context.c:610
 vfs_get_tree+0x87/0x250 fs/super.c:1499
 do_new_mount+0x1e1/0x930 fs/namespace.c:2994
 path_mount+0x612/0xc20 fs/namespace.c:3324
 do_mount fs/namespace.c:3337 [inline]
 __do_sys_mount fs/namespace.c:3545 [inline]
 __se_sys_mount+0x23e/0x2d0 fs/namespace.c:3522
 __x64_sys_mount+0xba/0xd0 fs/namespace.c:3522
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fc23bfe25fa
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 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:00007fc23bb53f88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000000748 RCX: 00007fc23bfe25fa
RDX: 0000000020000740 RSI: 0000000020000100 RDI: 00007fc23bb53fe0
RBP: 00007fc23bb54020 R08: 00007fc23bb54020 R09: 0000000000804810
R10: 0000000000804810 R11: 0000000000000246 R12: 0000000020000740
R13: 0000000020000100 R14: 00007fc23bb53fe0 R15: 0000000020000200
 </TASK>
================================================================================
EXT4-fs (loop0): Warning: mounting with an experimental mount option 'dioread_nolock' for blocksize < PAGE_SIZE
EXT4-fs (loop0): Encoding requested by superblock is unknown