jfs_lookup: dtSearch returned -5 ================================================================== BUG: KASAN: slab-out-of-bounds in diWrite+0x970/0x1268 fs/jfs/jfs_imap.c:753 Read of size 32 at addr ffff0000f6034150 by task syz.3.92/4808 CPU: 1 PID: 4808 Comm: syz.3.92 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 Call trace: dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack+0x30/0x40 lib/dump_stack.c:88 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106 print_address_description+0x88/0x218 mm/kasan/report.c:316 print_report+0x50/0x68 mm/kasan/report.c:420 kasan_report+0xa8/0xfc mm/kasan/report.c:524 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x258/0x290 mm/kasan/generic.c:189 memcpy+0x48/0x90 mm/kasan/shadow.c:65 diWrite+0x970/0x1268 fs/jfs/jfs_imap.c:753 txCommit+0x608/0x3d34 fs/jfs/jfs_txnmgr.c:1256 add_missing_indices+0x704/0xa34 fs/jfs/jfs_dtree.c:2664 jfs_readdir+0x1878/0x322c fs/jfs/jfs_dtree.c:3020 iterate_dir+0x1f0/0x4d0 fs/readdir.c:-1 __do_sys_getdents64 fs/readdir.c:369 [inline] __se_sys_getdents64 fs/readdir.c:354 [inline] __arm64_sys_getdents64+0x11c/0x314 fs/readdir.c:354 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 The buggy address belongs to the object at ffff0000f60340c0 which belongs to the cache jfs_ip of size 2240 The buggy address is located 144 bytes inside of 2240-byte region [ffff0000f60340c0, ffff0000f6034980) The buggy address belongs to the physical page: page:00000000bd788c84 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x136030 head:00000000bd788c84 order:3 compound_mapcount:0 compound_pincount:0 memcg:ffff0000d2767801 flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000010200 0000000000000000 dead000000000122 ffff0000c4d3ed80 raw: 0000000000000000 00000000800d000d 00000001ffffffff ffff0000d2767801 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000f6034000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000f6034080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff0000f6034100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff0000f6034180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000f6034200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 ERROR: (device loop3): remounting filesystem as read-only JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0 ERROR: (device loop3): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1 JFS: Invalid stbl[2] = -127 for inode 2, block = 0