0000000033f10a64: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000000ed3e0c2c: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ ================================================================== BUG: KASAN: slab-out-of-bounds in hex_dump_to_buffer+0x5dc/0x984 lib/hexdump.c:193 Read of size 1 at addr ffff0000eb8f4040 by task syz-executor.2/5413 CPU: 0 PID: 5413 Comm: syz-executor.2 Not tainted 5.15.157-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call trace: dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106 print_address_description+0x7c/0x3f0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:434 [inline] kasan_report+0x174/0x1e4 mm/kasan/report.c:451 __asan_report_load1_noabort+0x44/0x50 mm/kasan/report_generic.c:306 hex_dump_to_buffer+0x5dc/0x984 lib/hexdump.c:193 print_hex_dump+0x140/0x248 lib/hexdump.c:276 ea_get+0xa04/0xef0 fs/jfs/xattr.c:561 __jfs_setxattr+0xe0/0x13ac fs/jfs/xattr.c:671 __jfs_xattr_set+0xf8/0x190 fs/jfs/xattr.c:917 jfs_xattr_set+0x58/0x70 fs/jfs/xattr.c:941 __vfs_setxattr+0x388/0x3a4 fs/xattr.c:182 __vfs_setxattr_noperm+0x110/0x528 fs/xattr.c:216 __vfs_setxattr_locked+0x1ec/0x218 fs/xattr.c:277 vfs_setxattr+0x1a8/0x344 fs/xattr.c:303 do_setxattr fs/xattr.c:588 [inline] setxattr+0x250/0x2b4 fs/xattr.c:611 path_setxattr+0x17c/0x258 fs/xattr.c:630 __do_sys_lsetxattr fs/xattr.c:653 [inline] __se_sys_lsetxattr fs/xattr.c:649 [inline] __arm64_sys_lsetxattr+0xbc/0xd8 fs/xattr.c:649 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Allocated by task 5413: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] __kasan_slab_alloc+0x8c/0xcc mm/kasan/common.c:467 kasan_slab_alloc include/linux/kasan.h:254 [inline] slab_post_alloc_hook+0x74/0x3f4 mm/slab.h:519 slab_alloc_node mm/slub.c:3220 [inline] slab_alloc mm/slub.c:3228 [inline] kmem_cache_alloc+0x1dc/0x45c mm/slub.c:3233 jfs_alloc_inode+0x24/0x60 fs/jfs/super.c:105 alloc_inode fs/inode.c:236 [inline] iget_locked+0x180/0x720 fs/inode.c:1244 jfs_iget+0x30/0x364 fs/jfs/inode.c:29 jfs_lookup+0x1e8/0x39c fs/jfs/namei.c:1467 __lookup_slow+0x250/0x388 fs/namei.c:1663 lookup_slow+0x60/0x84 fs/namei.c:1680 walk_component+0x394/0x4cc fs/namei.c:1976 lookup_last fs/namei.c:2431 [inline] path_lookupat+0x13c/0x3d0 fs/namei.c:2455 filename_lookup+0x1c4/0x4c8 fs/namei.c:2484 user_path_at_empty+0x5c/0x1a4 fs/namei.c:2883 user_path_at include/linux/namei.h:57 [inline] path_setxattr+0xbc/0x258 fs/xattr.c:625 __do_sys_lsetxattr fs/xattr.c:653 [inline] __se_sys_lsetxattr fs/xattr.c:649 [inline] __arm64_sys_lsetxattr+0xbc/0xd8 fs/xattr.c:649 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 The buggy address belongs to the object at ffff0000eb8f3780 which belongs to the cache jfs_ip of size 2240 The buggy address is located 0 bytes to the right of 2240-byte region [ffff0000eb8f3780, ffff0000eb8f4040) The buggy address belongs to the page: page:0000000031468a4b refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12b8f0 head:0000000031468a4b order:3 compound_mapcount:0 compound_pincount:0 memcg:ffff0000c1d17801 flags: 0x5ffe00000010200(slab|head|node=0|zone=2|lastcpupid=0xfff) raw: 05ffe00000010200 0000000000000000 dead000000000122 ffff0000c6601500 raw: 0000000000000000 00000000800d000d 00000001ffffffff ffff0000c1d17801 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000eb8f3f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff0000eb8f3f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff0000eb8f4000: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc ^ ffff0000eb8f4080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000eb8f4100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== 0000000010237d09: c0 40 8f eb 00 00 ff ff 25 15 00 00 cd 03 00 e1 .@......%....... 0000000012f8a0b5: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 000000008454efe1: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 000000009a889bf5: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 000000001c88c67b: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000000c3395cce: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000000f4232a8a: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000000f2f231a4: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0000000084888815: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 000000008839c161: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 000000005431664e: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 000000007cb2ba58: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000000b3325556: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 0000000009a209e3: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 000000005926c1bb: 00 00 00 00 00 00 00 00 00 00 00 ff 00 00 00 00 ................ 00000000cbaa971b: 00 00 00 00 00 00 00 00 00 00 00 00 ad 4e ad de .............N.. 000000000511e4d3: ff ff ff ff 00 00 00 00 ff ff ff ff ff ff ff ff ................ 000000002f8d3c19: 00 39 58 18 00 80 ff ff 00 00 00 00 00 00 00 00 .9X............. 0000000038582a85: 00 00 00 00 00 00 00 00 a0 a6 e2 11 00 80 ff ff ................ 0000000016e39e87: 00 02 00 00 00 00 00 00 78 41 8f eb 00 00 ff ff ........xA...... 000000007c3fd2f1: 78 41 8f eb 00 00 ff ff 00 00 00 00 00 00 00 00 xA.............. 00000000c65bca05: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 000000008f3c86d0: 00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00 .....N.......... 00000000f2207acd: ff ff ff ff ff ff ff ff b0 54 f5 16 00 80 ff ff .........T...... 000000005141df93: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00000000ece66875: 20 a0 ae 11 00 80 ff ff 00 02 00 00 00 00 00 00 ...............