loop0: detected capacity change from 0 to 32768 ================================================================================ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2238:2 index 2000 is out of range for type 's64[128]' (aka 'long long[128]') CPU: 1 PID: 4216 Comm: syz-executor247 Not tainted 6.1.29-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 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/0x5c lib/dump_stack.c:113 ubsan_epilogue lib/ubsan.c:151 [inline] __ubsan_handle_out_of_bounds+0xfc/0x148 lib/ubsan.c:282 dbAllocBits+0x8a4/0x8d0 fs/jfs/jfs_dmap.c:2238 dbAllocDmap fs/jfs/jfs_dmap.c:2015 [inline] dbAllocNear+0x224/0x334 fs/jfs/jfs_dmap.c:1244 dbAlloc+0x8b4/0xb68 fs/jfs/jfs_dmap.c:829 ea_get+0x6f8/0xef0 fs/jfs/xattr.c:514 __jfs_setxattr+0x41c/0x1338 fs/jfs/xattr.c:718 __jfs_set_acl+0x108/0x1a4 fs/jfs/acl.c:87 jfs_set_acl+0x1f0/0x45c fs/jfs/acl.c:114 set_posix_acl fs/posix_acl.c:1160 [inline] posix_acl_xattr_set+0x2f8/0x398 fs/posix_acl.c:1189 __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:309 do_setxattr fs/xattr.c:594 [inline] setxattr+0x230/0x294 fs/xattr.c:617 path_setxattr+0x17c/0x258 fs/xattr.c:636 __do_sys_lsetxattr fs/xattr.c:659 [inline] __se_sys_lsetxattr fs/xattr.c:655 [inline] __arm64_sys_lsetxattr+0xbc/0xd8 fs/xattr.c:655 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 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:581 ================================================================================ ================================================================== BUG: KASAN: slab-out-of-bounds in dbAllocBits+0x7a8/0x8d0 fs/jfs/jfs_dmap.c:2238 Read of size 8 at addr ffff0000d2446eb8 by task syz-executor247/4216 CPU: 1 PID: 4216 Comm: syz-executor247 Not tainted 6.1.29-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 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 __asan_report_load8_noabort+0x2c/0x38 mm/kasan/report_generic.c:351 dbAllocBits+0x7a8/0x8d0 fs/jfs/jfs_dmap.c:2238 dbAllocDmap fs/jfs/jfs_dmap.c:2015 [inline] dbAllocNear+0x224/0x334 fs/jfs/jfs_dmap.c:1244 dbAlloc+0x8b4/0xb68 fs/jfs/jfs_dmap.c:829 ea_get+0x6f8/0xef0 fs/jfs/xattr.c:514 __jfs_setxattr+0x41c/0x1338 fs/jfs/xattr.c:718 __jfs_set_acl+0x108/0x1a4 fs/jfs/acl.c:87 jfs_set_acl+0x1f0/0x45c fs/jfs/acl.c:114 set_posix_acl fs/posix_acl.c:1160 [inline] posix_acl_xattr_set+0x2f8/0x398 fs/posix_acl.c:1189 __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:309 do_setxattr fs/xattr.c:594 [inline] setxattr+0x230/0x294 fs/xattr.c:617 path_setxattr+0x17c/0x258 fs/xattr.c:636 __do_sys_lsetxattr fs/xattr.c:659 [inline] __se_sys_lsetxattr fs/xattr.c:655 [inline] __arm64_sys_lsetxattr+0xbc/0xd8 fs/xattr.c:655 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 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:581 The buggy address belongs to the object at ffff0000d2446000 which belongs to the cache kmalloc-2k of size 2048 The buggy address is located 1720 bytes to the right of 2048-byte region [ffff0000d2446000, ffff0000d2446800) The buggy address belongs to the physical page: page:000000005eac5069 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x112440 head:000000005eac5069 order:3 compound_mapcount:0 compound_pincount:0 flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000010200 0000000000000000 dead000000000122 ffff0000c0002900 raw: 0000000000000000 0000000080080008 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000d2446d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000d2446e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff0000d2446e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff0000d2446f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000d2446f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== JFS: metapage_get_blocks failed ERROR: (device loop0): release_metapage: write_one_page() failed ERROR: (device loop0): remounting filesystem as read-only