ci2 starts bisection 2023-05-01 13:22:57.201228473 +0000 UTC m=+250831.221599703 bisecting fixing commit since b208b9fbbcba743fb269d15cb46a4036b01936b1 building syzkaller on 6d752409f178135881da3510c910bb11ae1f1381 ensuring issue is reproducible on original commit b208b9fbbcba743fb269d15cb46a4036b01936b1 testing commit b208b9fbbcba743fb269d15cb46a4036b01936b1 gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 5850627805e3c0e3cd86089c26970980b8bc8adeff60536941ec42295ac85630 all runs: crashed: UBSAN: array-index-out-of-bounds in dbJoin testing current HEAD 58390c8ce1bddb6c623f62e7ed36383e7fa5c02f testing commit 58390c8ce1bddb6c623f62e7ed36383e7fa5c02f gcc compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: fb25d14f8782bd8c8b85e99ecbea56f9ee2ef7aaf459233038167d8e1540d792 run #0: basic kernel testing failed: BUG: program execution failed: executor NUM: failed to write control pipe: write |NUM: broken pipe run #1: crashed: UBSAN: array-index-out-of-bounds in dbJoin run #2: crashed: UBSAN: array-index-out-of-bounds in dbJoin run #3: crashed: UBSAN: array-index-out-of-bounds in dbJoin run #4: crashed: UBSAN: array-index-out-of-bounds in dbJoin run #5: crashed: UBSAN: array-index-out-of-bounds in dbJoin run #6: crashed: UBSAN: array-index-out-of-bounds in dbJoin run #7: crashed: UBSAN: array-index-out-of-bounds in dbJoin run #8: crashed: UBSAN: array-index-out-of-bounds in dbJoin run #9: crashed: UBSAN: array-index-out-of-bounds in dbJoin revisions tested: 2, total time: 44m33.757414721s (build: 36m40.00122197s, test: 6m43.346619814s) the crash still happens on HEAD commit msg: Merge tag 'iommu-updates-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu crash: UBSAN: array-index-out-of-bounds in dbJoin ================================================================================ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2761:24 index 1426063360 is out of range for type 's8[1365]' (aka 'signed char[1365]') CPU: 1 PID: 103 Comm: jfsCommit 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_out_of_bounds+0xac/0xd0 dbJoin+0x22a/0x260 dbFreeBits+0x75/0xbb0 dbFree+0x2dc/0x540 txFreeMap+0x880/0xcb0 xtTruncate+0xb30/0x2c90 jfs_free_zero_link+0x381/0x5c0 jfs_evict_inode+0x283/0x380 evict+0x262/0x550 txUpdateMap+0x64c/0x910 jfs_lazycommit+0x415/0xa00 kthread+0x276/0x2f0 ret_from_fork+0x1f/0x30 ================================================================================