bridge0: port 2(bridge_slave_1) entered disabled state
bridge0: port 1(bridge_slave_0) entered disabled state
loop0: detected capacity change from 0 to 32768
XFS (loop0): Mounting V5 Filesystem c496e05e-540d-4c72-b591-04d79d8b4eeb
XFS (loop0): Internal error head_block >= tail_block || head_cycle != tail_cycle + 1 at line 1645 of file fs/xfs/xfs_log_recover.c.  Caller xlog_clear_stale_blocks+0x272/0x3c0 fs/xfs/xfs_log_recover.c:1632
CPU: 0 UID: 0 PID: 5322 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 xfs_error_report fs/xfs/xfs_error.c:234 [inline]
 xfs_corruption_error+0x122/0x170 fs/xfs/xfs_error.c:251
 xlog_clear_stale_blocks+0x31b/0x3c0 fs/xfs/xfs_log_recover.c:-1
 xlog_find_tail+0x655/0x840 fs/xfs/xfs_log_recover.c:1361
 xlog_recover+0x4b/0x3e0 fs/xfs/xfs_log_recover.c:3422
 xfs_log_mount+0x253/0x3e0 fs/xfs/xfs_log.c:667
 xfs_mountfs+0xe70/0x22e0 fs/xfs/xfs_mount.c:1031
 xfs_fs_fill_super+0x11f1/0x1640 fs/xfs/xfs_super.c:1960
 get_tree_bdev_flags+0x431/0x4f0 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+0x329/0xa50 fs/namespace.c:3712
 do_mount fs/namespace.c:4035 [inline]
 __do_sys_mount fs/namespace.c:4224 [inline]
 __se_sys_mount+0x31d/0x420 fs/namespace.c:4201
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7cfab9c14a
Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7cfba26e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f7cfba26ee0 RCX: 00007f7cfab9c14a
RDX: 00002000000003c0 RSI: 0000200000000000 RDI: 00007f7cfba26ea0
RBP: 00002000000003c0 R08: 00007f7cfba26ee0 R09: 0000000000004008
R10: 0000000000004008 R11: 0000000000000246 R12: 0000200000000000
R13: 00007f7cfba26ea0 R14: 0000000000009825 R15: 0000200000000040
 </TASK>
XFS (loop0): Corruption detected. Unmount and run xfs_repair
XFS (loop0): failed to locate log tail
XFS (loop0): log mount/recovery failed: error -117
XFS (loop0): log mount failed
==================================================================
BUG: KASAN: slab-out-of-bounds in fib6_add_rt2node+0x349c/0x3500 net/ipv6/ip6_fib.c:1142
Read of size 1 at addr ffff8880127622de by task syz.0.0/5322

CPU: 0 UID: 0 PID: 5322 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xba/0x230 mm/kasan/report.c:482
 kasan_report+0x117/0x150 mm/kasan/report.c:595
 fib6_add_rt2node+0x349c/0x3500 net/ipv6/ip6_fib.c:1142
 fib6_add_rt2node_nh net/ipv6/ip6_fib.c:1363 [inline]
 fib6_add+0x910/0x18c0 net/ipv6/ip6_fib.c:1531
 __ip6_ins_rt net/ipv6/route.c:1351 [inline]
 ip6_route_add+0xde/0x1b0 net/ipv6/route.c:3957
 inet6_rtm_newroute+0x268/0x19e0 net/ipv6/route.c:5660
 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:6958
 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2550
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x80f/0x9b0 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1894
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 ____sys_sendmsg+0xa68/0xad0 net/socket.c:2592
 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2646
 __sys_sendmsg net/socket.c:2678 [inline]
 __do_sys_sendmsg net/socket.c:2683 [inline]
 __se_sys_sendmsg net/socket.c:2681 [inline]
 __x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2681
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7cfab9aeb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7cfba27028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f7cfae15fa0 RCX: 00007f7cfab9aeb9
RDX: 0000000000000000 RSI: 0000200000004380 RDI: 0000000000000003
RBP: 00007f7cfac08c1f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7cfae16038 R14: 00007f7cfae15fa0 R15: 00007ffd8368bc48
 </TASK>

Allocated by task 5322:
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __do_kmalloc_node mm/slub.c:5657 [inline]
 __kmalloc_noprof+0x40c/0x7e0 mm/slub.c:5669
 kmalloc_noprof include/linux/slab.h:961 [inline]
 kzalloc_noprof include/linux/slab.h:1094 [inline]
 fib6_info_alloc+0x30/0xf0 net/ipv6/ip6_fib.c:155
 ip6_route_info_create+0x142/0x860 net/ipv6/route.c:3820
 ip6_route_add+0x49/0x1b0 net/ipv6/route.c:3949
 inet6_rtm_newroute+0x268/0x19e0 net/ipv6/route.c:5660
 rtnetlink_rcv_msg+0x7d5/0xbe0 net/core/rtnetlink.c:6958
 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2550
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x80f/0x9b0 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1894
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 ____sys_sendmsg+0xa68/0xad0 net/socket.c:2592
 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2646
 __sys_sendmsg net/socket.c:2678 [inline]
 __do_sys_sendmsg net/socket.c:2683 [inline]
 __se_sys_sendmsg net/socket.c:2681 [inline]
 __x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2681
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

The buggy address belongs to the object at ffff888012762200
 which belongs to the cache kmalloc-256 of size 256
The buggy address is located 22 bytes to the right of
 allocated 200-byte region [ffff888012762200, ffff8880127622c8)

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12762
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000000 ffff88801a841b40 dead000000000100 dead000000000122
raw: 0000000000000000 0000000000080008 00000000f5000000 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x252800(GFP_NOWAIT|__GFP_NORETRY|__GFP_COMP|__GFP_THISNODE), pid 68, tgid 68 (kworker/u4:4), ts 73486959609, free_ts 29667499965
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x228/0x280 mm/page_alloc.c:1884
 prep_new_page mm/page_alloc.c:1892 [inline]
 get_page_from_freelist+0x24dc/0x2580 mm/page_alloc.c:3945
 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5240
 alloc_slab_page mm/slub.c:3077 [inline]
 allocate_slab+0x7a/0x3a0 mm/slub.c:3248
 new_slab mm/slub.c:3302 [inline]
 ___slab_alloc+0xd82/0x1760 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_node_noprof+0x5bc/0x7f0 mm/slub.c:5663
 kmalloc_array_node_noprof include/linux/slab.h:1075 [inline]
 alloc_slab_obj_exts+0x3e/0x100 mm/slub.c:2123
 account_slab mm/slub.c:3202 [inline]
 allocate_slab+0x1cc/0x3a0 mm/slub.c:3267
 new_slab mm/slub.c:3302 [inline]
 ___slab_alloc+0xd82/0x1760 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]
 kmem_cache_alloc_noprof+0x3fe/0x6e0 mm/slub.c:5270
 node_alloc net/ipv6/ip6_fib.c:188 [inline]
 fib6_add_1+0x9c1/0x1460 net/ipv6/ip6_fib.c:-1
 fib6_add+0x211/0x18c0 net/ipv6/ip6_fib.c:1445
 __ip6_ins_rt net/ipv6/route.c:1351 [inline]
 ip6_ins_rt+0xd6/0x140 net/ipv6/route.c:1361
 __ipv6_ifa_notify+0x4e8/0xc60 net/ipv6/addrconf.c:6283
page last free pid 1 tgid 1 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1433 [inline]
 __free_frozen_pages+0xbf8/0xd70 mm/page_alloc.c:2973
 __free_pages mm/page_alloc.c:5359 [inline]
 free_reserved_page+0xce/0x120 mm/page_alloc.c:6270
 free_reserved_area+0x90/0x190 mm/page_alloc.c:6256
 free_init_pages arch/x86/mm/init.c:937 [inline]
 free_kernel_image_pages+0xa2/0x100 arch/x86/mm/init.c:953
 kernel_init+0x31/0x1d0 init/main.c:1587
 ret_from_fork+0x51b/0xa40 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:
 ffff888012762180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888012762200: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff888012762280: 00 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc
                                                    ^
 ffff888012762300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888012762380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================