loop0: detected capacity change from 0 to 32768 ================================================================================ UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dmap.c:2323:2 index 2000 is out of range for type 's64[128]' (aka 'long long[128]') CPU: 1 PID: 4391 Comm: syz-executor.0 Not tainted 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 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 dump_stack+0x1c/0x58 lib/dump_stack.c:113 ubsan_epilogue lib/ubsan.c:151 [inline] __ubsan_handle_out_of_bounds+0x108/0x15c lib/ubsan.c:282 dbAllocBits+0x8ac/0x8d8 fs/jfs/jfs_dmap.c:2323 dbAllocDmap fs/jfs/jfs_dmap.c:2100 [inline] dbAllocNear+0x224/0x334 fs/jfs/jfs_dmap.c:1326 dbAlloc+0x804/0xa18 fs/jfs/jfs_dmap.c:843 ea_get+0x6f8/0xef8 fs/jfs/xattr.c:514 __jfs_setxattr+0x41c/0x13ac fs/jfs/xattr.c:720 __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:947 [inline] posix_acl_xattr_set+0x2cc/0x378 fs/posix_acl.c:966 __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 ================================================================================ ================================================================== BUG: KASAN: slab-out-of-bounds in dbAllocBits+0x7b0/0x8d8 fs/jfs/jfs_dmap.c:2323 Read of size 8 at addr ffff0000d5595eb8 by task syz-executor.0/4391 CPU: 1 PID: 4391 Comm: syz-executor.0 Not tainted 5.15.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 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_load8_noabort+0x44/0x50 mm/kasan/report_generic.c:309 dbAllocBits+0x7b0/0x8d8 fs/jfs/jfs_dmap.c:2323 dbAllocDmap fs/jfs/jfs_dmap.c:2100 [inline] dbAllocNear+0x224/0x334 fs/jfs/jfs_dmap.c:1326 dbAlloc+0x804/0xa18 fs/jfs/jfs_dmap.c:843 ea_get+0x6f8/0xef8 fs/jfs/xattr.c:514 __jfs_setxattr+0x41c/0x13ac fs/jfs/xattr.c:720 __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:947 [inline] posix_acl_xattr_set+0x2cc/0x378 fs/posix_acl.c:966 __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 4387: 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_kmalloc+0xbc/0xfc mm/kasan/common.c:513 __kasan_kmalloc+0x10/0x1c mm/kasan/common.c:522 kasan_kmalloc include/linux/kasan.h:264 [inline] __kmalloc_node_track_caller+0x234/0x448 mm/slub.c:4963 kmalloc_reserve+0xe8/0x270 net/core/skbuff.c:356 __alloc_skb+0x1a4/0x584 net/core/skbuff.c:427 alloc_skb include/linux/skbuff.h:1167 [inline] alloc_skb_with_frags+0xb4/0x58c net/core/skbuff.c:6170 sock_alloc_send_pskb+0x7a8/0x8c0 net/core/sock.c:2530 sock_alloc_send_skb+0x44/0x58 net/core/sock.c:2547 mld_newpack+0x170/0x820 net/ipv6/mcast.c:1748 add_grhead net/ipv6/mcast.c:1851 [inline] add_grec+0x1164/0x1528 net/ipv6/mcast.c:1989 mld_send_cr net/ipv6/mcast.c:2115 [inline] mld_ifc_work+0x710/0xb9c net/ipv6/mcast.c:2653 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310 worker_thread+0x910/0x1034 kernel/workqueue.c:2457 kthread+0x37c/0x45c kernel/kthread.c:334 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 Freed by task 4387: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4c/0x84 mm/kasan/common.c:46 kasan_set_free_info+0x28/0x4c mm/kasan/generic.c:360 ____kasan_slab_free+0x118/0x164 mm/kasan/common.c:366 __kasan_slab_free+0x18/0x28 mm/kasan/common.c:374 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:1705 [inline] slab_free_freelist_hook+0x128/0x1ec mm/slub.c:1731 slab_free mm/slub.c:3499 [inline] kfree+0x178/0x410 mm/slub.c:4559 skb_free_head net/core/skbuff.c:655 [inline] skb_release_data+0x404/0x5fc net/core/skbuff.c:677 skb_release_all net/core/skbuff.c:742 [inline] __kfree_skb net/core/skbuff.c:756 [inline] consume_skb+0x138/0x40c net/core/skbuff.c:914 macvlan_process_broadcast+0x568/0x6cc drivers/net/macvlan.c:336 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310 worker_thread+0x910/0x1034 kernel/workqueue.c:2457 kthread+0x37c/0x45c kernel/kthread.c:334 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 The buggy address belongs to the object at ffff0000d5595000 which belongs to the cache kmalloc-2k of size 2048 The buggy address is located 1720 bytes to the right of 2048-byte region [ffff0000d5595000, ffff0000d5595800) The buggy address belongs to the page: page:0000000054736fbc refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff0000d5596000 pfn:0x115590 head:0000000054736fbc order:3 compound_mapcount:0 compound_pincount:0 flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) raw: 05ffc00000010200 0000000000000000 0000000100000001 ffff0000c0002900 raw: ffff0000d5596000 0000000080080007 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff0000d5595d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000d5595e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff0000d5595e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff0000d5595f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff0000d5595f80: 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