ci2 starts bisection 2023-02-20 02:48:55.255700505 +0000 UTC m=+102701.326820385 bisecting fixing commit since 493ffd6605b2d3d4dc7008ab927dba319f36671f building syzkaller on a0fd4dab4eac71d7b3237bb1000352206a6a82f5 ensuring issue is reproducible on original commit 493ffd6605b2d3d4dc7008ab927dba319f36671f testing commit 493ffd6605b2d3d4dc7008ab927dba319f36671f gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 038392fe1f755c4b949be5d2f634b605bdeedd1ebe19f70786806556523a4b6c all runs: crashed: UBSAN: array-index-out-of-bounds in diWrite testing current HEAD c9c3395d5e3dcc6daee66c6908354d47bf98cb0c testing commit c9c3395d5e3dcc6daee66c6908354d47bf98cb0c gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: f99be56d1ef854516ebbf1c17bc31d30cb8d765ba0f9b222771bd3f39100bc55 all runs: crashed: UBSAN: array-index-out-of-bounds in diWrite revisions tested: 2, total time: 45m18.862534606s (build: 35m31.374628836s, test: 7m43.462883704s) the crash still happens on HEAD commit msg: Linux 6.2 crash: UBSAN: array-index-out-of-bounds in diWrite loop0: detected capacity change from 0 to 32768 ================================================================================ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_imap.c:749:4 index 255 is out of range for type 'struct dtslot[128]' CPU: 0 PID: 5599 Comm: syz-executor.0 Not tainted 6.2.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 Call Trace: dump_stack_lvl+0x12e/0x1d0 __ubsan_handle_out_of_bounds+0xac/0xd0 diWrite+0x1116/0x1b10 txCommit+0x43d/0x73e0 jfs_mkdir+0x75c/0x970 vfs_mkdir+0x2da/0x470 do_mkdirat+0x230/0x470 __x64_sys_mkdirat+0x84/0x90 do_syscall_64+0x41/0xc0 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fcaa348b5a9 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:00007fcaa45cc168 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007fcaa35abf80 RCX: 00007fcaa348b5a9 RDX: 00000000000001ff RSI: 00000000200000c0 RDI: ffffffffffffff9c RBP: 00007fcaa34e6580 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffd28c922f R14: 00007fcaa45cc300 R15: 0000000000022000 ================================================================================