======================================================= XFS (loop0): Mounting V5 Filesystem bfdc47fc-10d8-4eed-a562-11a831b3f791 ================================================================== BUG: KASAN: slab-out-of-bounds in crc32c_arch lib/crc/x86/crc32.h:90 [inline] BUG: KASAN: slab-out-of-bounds in crc32c+0xcd/0x480 lib/crc/crc32-main.c:86 Read of size 8 at addr ffff8880110d2a00 by task syz.0.17/5474 CPU: 0 UID: 0 PID: 5474 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xca/0x240 mm/kasan/report.c:482 kasan_report+0x118/0x150 mm/kasan/report.c:595 crc32c_arch lib/crc/x86/crc32.h:90 [inline] crc32c+0xcd/0x480 lib/crc/crc32-main.c:86 xlog_cksum+0x93/0x100 fs/xfs/xfs_log.c:1560 xlog_recover_process+0x90/0x2f0 fs/xfs/xfs_log_recover.c:2888 xlog_do_recovery_pass+0x9cd/0xc30 fs/xfs/xfs_log_recover.c:3238 xlog_verify_head+0x136/0x440 fs/xfs/xfs_log_recover.c:1058 xlog_find_tail+0x5ca/0x840 fs/xfs/xfs_log_recover.c:1315 xlog_recover+0x4b/0x3e0 fs/xfs/xfs_log_recover.c:3422 xfs_log_mount+0x253/0x3e0 fs/xfs/xfs_log.c:667 xfs_mountfs+0xe5e/0x22c0 fs/xfs/xfs_mount.c:1031 xfs_fs_fill_super+0x11f1/0x1640 fs/xfs/xfs_super.c:1960 get_tree_bdev_flags+0x40e/0x4d0 fs/super.c:1691 vfs_get_tree+0x92/0x2a0 fs/super.c:1751 fc_mount fs/namespace.c:1199 [inline] do_new_mount_fc fs/namespace.c:3636 [inline] do_new_mount+0x302/0xa10 fs/namespace.c:3712 do_mount fs/namespace.c:4035 [inline] __do_sys_mount fs/namespace.c:4224 [inline] __se_sys_mount+0x313/0x410 fs/namespace.c:4201 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5f99790f6a Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fffac8d1a48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fffac8d1ad0 RCX: 00007f5f99790f6a RDX: 0000200000000500 RSI: 0000200000000200 RDI: 00007fffac8d1a90 RBP: 0000200000000500 R08: 00007fffac8d1ad0 R09: 0000000002218a5d R10: 0000000002218a5d R11: 0000000000000246 R12: 0000200000000200 R13: 00007fffac8d1a90 R14: 0000000000009706 R15: 0000200000000100 Allocated by task 5474: kasan_save_stack mm/kasan/common.c:56 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:77 poison_kmalloc_redzone mm/kasan/common.c:397 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:414 kasan_kmalloc include/linux/kasan.h:262 [inline] __do_kmalloc_node mm/slub.c:5657 [inline] __kvmalloc_node_noprof+0x5d5/0x920 mm/slub.c:7134 xlog_do_recovery_pass+0x106/0xc30 fs/xfs/xfs_log_recover.c:3019 xlog_verify_head+0x136/0x440 fs/xfs/xfs_log_recover.c:1058 xlog_find_tail+0x5ca/0x840 fs/xfs/xfs_log_recover.c:1315 xlog_recover+0x4b/0x3e0 fs/xfs/xfs_log_recover.c:3422 xfs_log_mount+0x253/0x3e0 fs/xfs/xfs_log.c:667 xfs_mountfs+0xe5e/0x22c0 fs/xfs/xfs_mount.c:1031 xfs_fs_fill_super+0x11f1/0x1640 fs/xfs/xfs_super.c:1960 get_tree_bdev_flags+0x40e/0x4d0 fs/super.c:1691 vfs_get_tree+0x92/0x2a0 fs/super.c:1751 fc_mount fs/namespace.c:1199 [inline] do_new_mount_fc fs/namespace.c:3636 [inline] do_new_mount+0x302/0xa10 fs/namespace.c:3712 do_mount fs/namespace.c:4035 [inline] __do_sys_mount fs/namespace.c:4224 [inline] __se_sys_mount+0x313/0x410 fs/namespace.c:4201 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff8880110d2800 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 0 bytes to the right of allocated 512-byte region [ffff8880110d2800, ffff8880110d2a00) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x110d2 head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0xfff00000000040(head|node=0|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 00fff00000000040 ffff88801a441c80 dead000000000100 dead000000000122 raw: 0000000000000000 0000000080080008 00000000f5000000 0000000000000000 head: 00fff00000000040 ffff88801a441c80 dead000000000100 dead000000000122 head: 0000000000000000 0000000080080008 00000000f5000000 0000000000000000 head: 00fff00000000001 ffffea0000443481 00000000ffffffff 00000000ffffffff head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5409, tgid 5409 (syz-executor), ts 104117150153, free_ts 101344215420 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x234/0x290 mm/page_alloc.c:1846 prep_new_page mm/page_alloc.c:1854 [inline] get_page_from_freelist+0x2365/0x2440 mm/page_alloc.c:3915 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5210 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2486 alloc_slab_page mm/slub.c:3075 [inline] allocate_slab+0x86/0x3b0 mm/slub.c:3248 new_slab mm/slub.c:3302 [inline] ___slab_alloc+0xf2b/0x1960 mm/slub.c:4656 __slab_alloc+0x65/0x100 mm/slub.c:4779 __slab_alloc_node mm/slub.c:4855 [inline] slab_alloc_node mm/slub.c:5251 [inline] __do_kmalloc_node mm/slub.c:5656 [inline] __kmalloc_noprof+0x47d/0x800 mm/slub.c:5669 kmalloc_noprof include/linux/slab.h:961 [inline] kzalloc_noprof include/linux/slab.h:1094 [inline] __alloc_workqueue+0x108/0x1b80 kernel/workqueue.c:5717 alloc_workqueue_noprof+0xd4/0x210 kernel/workqueue.c:5820 wg_newlink+0x1f1/0x670 drivers/net/wireguard/device.c:335 rtnl_newlink_create+0x310/0xb00 net/core/rtnetlink.c:3840 __rtnl_newlink net/core/rtnetlink.c:3957 [inline] rtnl_newlink+0x16e7/0x1c90 net/core/rtnetlink.c:4072 rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6958 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2550 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344 page last free pid 79 tgid 79 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1395 [inline] free_unref_folios+0xdb3/0x14f0 mm/page_alloc.c:3000 shrink_folio_list+0x291c/0x4a10 mm/vmscan.c:1533 evict_folios+0x471e/0x57c0 mm/vmscan.c:4709 try_to_shrink_lruvec+0x8a3/0xb50 mm/vmscan.c:4872 shrink_one+0x25c/0x720 mm/vmscan.c:4917 shrink_many mm/vmscan.c:4980 [inline] lru_gen_shrink_node mm/vmscan.c:5058 [inline] shrink_node+0x2f7d/0x35b0 mm/vmscan.c:6045 kswapd_shrink_node mm/vmscan.c:6899 [inline] balance_pgdat mm/vmscan.c:7082 [inline] kswapd+0x145a/0x2820 mm/vmscan.c:7352 kthread+0x711/0x8a0 kernel/kthread.c:463 ret_from_fork+0x599/0xb30 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 Memory state around the buggy address: ffff8880110d2900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8880110d2980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff8880110d2a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff8880110d2a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8880110d2b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================