... Log Wrap ... Log Wrap ... Log Wrap ... ERROR: (device loop1): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 0 ================================================================================ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dtree.c:2894:30 index -128 is out of range for type 'struct dtslot[128]' CPU: 1 PID: 6842 Comm: syz.1.779 Not tainted 6.1.119-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 ubsan_epilogue lib/ubsan.c:151 [inline] __ubsan_handle_out_of_bounds+0xfc/0x148 lib/ubsan.c:282 jfs_readdir+0x1580/0x37bc fs/jfs/jfs_dtree.c:2894 iterate_dir+0x1f4/0x4ec __do_sys_getdents64 fs/readdir.c:369 [inline] __se_sys_getdents64 fs/readdir.c:354 [inline] __arm64_sys_getdents64+0x1c4/0x4a0 fs/readdir.c:354 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 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 ================================================================================ ================================================================================ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dtree.c:2649:28 index -128 is out of range for type 'struct dtslot[128]' CPU: 1 PID: 6842 Comm: syz.1.779 Not tainted 6.1.119-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 ubsan_epilogue lib/ubsan.c:151 [inline] __ubsan_handle_out_of_bounds+0xfc/0x148 lib/ubsan.c:282 add_missing_indices fs/jfs/jfs_dtree.c:2649 [inline] jfs_readdir+0x1dfc/0x37bc fs/jfs/jfs_dtree.c:3011 iterate_dir+0x1f4/0x4ec __do_sys_getdents64 fs/readdir.c:369 [inline] __se_sys_getdents64 fs/readdir.c:354 [inline] __arm64_sys_getdents64+0x1c4/0x4a0 fs/readdir.c:354 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 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 ================================================================================ ================================================================== BUG: KASAN: slab-out-of-bounds in diWrite+0xb48/0x15cc fs/jfs/jfs_imap.c:753 Read of size 32 at addr ffff0000df79c130 by task syz.1.779/6842 CPU: 1 PID: 6842 Comm: syz.1.779 Not tainted 6.1.119-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Call trace: dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:284 [inline] print_report+0x174/0x4c0 mm/kasan/report.c:395 kasan_report+0xd4/0x130 mm/kasan/report.c:495 kasan_check_range+0x264/0x2a4 mm/kasan/generic.c:189 memcpy+0x48/0x90 mm/kasan/shadow.c:65 diWrite+0xb48/0x15cc fs/jfs/jfs_imap.c:753 txCommit+0x750/0x5574 fs/jfs/jfs_txnmgr.c:1255 add_missing_indices fs/jfs/jfs_dtree.c:2663 [inline] jfs_readdir+0x1e80/0x37bc fs/jfs/jfs_dtree.c:3011 iterate_dir+0x1f4/0x4ec __do_sys_getdents64 fs/readdir.c:369 [inline] __se_sys_getdents64 fs/readdir.c:354 [inline] __arm64_sys_getdents64+0x1c4/0x4a0 fs/readdir.c:354 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 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 ffff0000df79c0c0 which belongs to the cache jfs_ip of size 2240 The buggy address is located 112 bytes inside of 2240-byte region [ffff0000df79c0c0, ffff0000df79c980) The buggy address belongs to the physical page: page:00000000b877fe33 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11f798 head:00000000b877fe33 order:3 compound_mapcount:0 compound_pincount:0 memcg:ffff0000d2cba501 flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000010200 0000000000000000 dead000000000122 ffff0000c6f23e00 raw: 0000000000000000 00000000800d000d 00000001ffffffff ffff0000d2cba501 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000df79c000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000df79c080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff0000df79c100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff0000df79c180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000df79c200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== ... Log Wrap ... Log Wrap ... Log Wrap ... ... Log Wrap ... Log Wrap ... Log Wrap ... ... Log Wrap ... Log Wrap ... Log Wrap ... ERROR: (device loop1): jfs_readdir: JFS:Dtree error: ino = 2, bn=0, index = 1