ci2 starts bisection 2023-04-24 21:29:48.475212308 +0000 UTC m=+34702.427521722 bisecting fixing commit since b357fd1c2afc1a3e1b73dc4574bb7ac0e3bd4193 building syzkaller on feb5635181eb12a6e3516172a3f5af06a3bc93e1 ensuring issue is reproducible on original commit b357fd1c2afc1a3e1b73dc4574bb7ac0e3bd4193 testing commit b357fd1c2afc1a3e1b73dc4574bb7ac0e3bd4193 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 2a89abd22f86483a2358fee830483413a0d6139963070b39e7897d649f9b84d2 all runs: crashed: UBSAN: shift-out-of-bounds in dbSplit testing current HEAD c23f28975abc2eb02cecc8bc1f2c95473a59ed2e testing commit c23f28975abc2eb02cecc8bc1f2c95473a59ed2e gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: d38f6a478bf367c4c97a0aae9fc50afd9f806e04aa1da0d52b516bbd8f67a0e7 all runs: crashed: UBSAN: shift-out-of-bounds in dbSplit revisions tested: 2, total time: 38m43.396803484s (build: 30m33.477932283s, test: 7m0.7859148s) the crash still happens on HEAD commit msg: Merge tag 'docs-6.4' of git://git.lwn.net/linux crash: UBSAN: shift-out-of-bounds in dbSplit loop0: detected capacity change from 0 to 32768 ================================================================================ UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:2622:11 shift exponent 109 is too large for 32-bit type 'int' CPU: 0 PID: 5425 Comm: syz-executor.0 Not tainted 6.3.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 Call Trace: dump_stack_lvl+0x12e/0x1d0 __ubsan_handle_shift_out_of_bounds+0x223/0x250 dbSplit+0x15f/0x170 dbAllocBits+0x9c/0x9a0 dbAllocNear+0x1f9/0x330 dbAlloc+0x650/0xa70 diNewExt+0xe51/0x3c90 diAllocAG+0x7d2/0x1e50 diAlloc+0x336/0x1210 ialloc+0x78/0x8a0 jfs_mkdir+0xf9/0x970 vfs_mkdir+0x1fc/0x370 do_mkdirat+0x24e/0x490 __x64_sys_mkdir+0x69/0x80 do_syscall_64+0x41/0xc0 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f002c88a5a9 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:00007f002d968168 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007f002c9abf80 RCX: 00007f002c88a5a9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200052c0 RBP: 00007f002c8e5580 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd9501a8ff R14: 00007f002d968300 R15: 0000000000022000 ================================================================================