ci starts bisection 2023-05-26 04:45:35.441001799 +0000 UTC m=+5582.622507864 bisecting fixing commit since 55be6084c8e0e0ada9278c2ab60b7a584378efda building syzkaller on 67cb024cd1a3c95e311263a5c95e957f9abfd8ca ensuring issue is reproducible on original commit 55be6084c8e0e0ada9278c2ab60b7a584378efda testing commit 55be6084c8e0e0ada9278c2ab60b7a584378efda gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 827f4d67831206cdb73aee32df9b04deba6ad10cc6415c509ce394baad508ecd all runs: crashed: UBSAN: shift-out-of-bounds in dbJoin testing current HEAD 0d85b27b0cc6b5cf54567c5ad913a247a71583ce testing commit 0d85b27b0cc6b5cf54567c5ad913a247a71583ce gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: b8dc349f8ab0dbcbd1643011783f9732ebd29e539d5dd936fa9a6f513f75a347 all runs: crashed: UBSAN: shift-out-of-bounds in dbJoin crash still not fixed/happens on the oldest tested release revisions tested: 2, total time: 20m32.067343612s (build: 13m4.835706687s, test: 6m39.68681503s) crash still not fixed on HEAD or HEAD had kernel test errors commit msg: Merge tag '6.4-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6 crash: UBSAN: shift-out-of-bounds in dbJoin ================================================================================ UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:2776:11 shift exponent 78 is too large for 32-bit type 'int' CPU: 1 PID: 104 Comm: jfsCommit Not tainted 6.4.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/16/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x8a/0xa0 lib/dump_stack.c:106 ubsan_epilogue lib/ubsan.c:217 [inline] __ubsan_handle_shift_out_of_bounds+0x156/0x2f0 lib/ubsan.c:387 dbJoin.cold+0x18/0x21 fs/jfs/jfs_dmap.c:2776 dbAdjCtl+0x5b6/0x830 fs/jfs/jfs_dmap.c:2516 dbFreeDmap+0xa8/0x150 fs/jfs/jfs_dmap.c:2080 dbFree+0x1f9/0x490 fs/jfs/jfs_dmap.c:395 txFreeMap+0x283/0xc30 fs/jfs/jfs_txnmgr.c:2510 xtTruncate+0x15c5/0x26e0 fs/jfs/jfs_xtree.c:2467 jfs_free_zero_link+0x2b3/0x410 fs/jfs/namei.c:758 jfs_evict_inode+0x384/0x430 fs/jfs/inode.c:153 evict+0x296/0x5d0 fs/inode.c:665 txUpdateMap+0x847/0xa50 fs/jfs/jfs_txnmgr.c:2362 txLazyCommit fs/jfs/jfs_txnmgr.c:2659 [inline] jfs_lazycommit+0x4d7/0x940 fs/jfs/jfs_txnmgr.c:2727 kthread+0x2e6/0x3c0 kernel/kthread.c:379 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 ================================================================================