IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready ================================================================== BUG: KASAN: use-after-free in ext4_xattr_set_entry+0x35e0/0x3770 fs/ext4/xattr.c:1604 Read of size 4 at addr ffff88807a263083 by task syz-executor.2/7742 CPU: 1 PID: 7742 Comm: syz-executor.2 Not tainted 4.19.89-syzkaller #0 IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready Call Trace: hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network print_address_description.cold+0x7c/0x20d mm/kasan/report.c:256 IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready kasan_report_error mm/kasan/report.c:354 [inline] kasan_report mm/kasan/report.c:412 [inline] kasan_report.cold+0x8c/0x2ba mm/kasan/report.c:396 __asan_report_load4_noabort+0x14/0x20 mm/kasan/report.c:432 ext4_xattr_set_entry+0x35e0/0x3770 fs/ext4/xattr.c:1604 IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready 8021q: adding VLAN 0 to HW filter on device batadv0 ext4_xattr_ibody_set+0x89/0x2c0 fs/ext4/xattr.c:2240 ext4_xattr_set_handle+0x5d2/0x1010 fs/ext4/xattr.c:2396 ext4_initxattrs+0xc0/0x130 fs/ext4/xattr_security.c:43 security_inode_init_security security/security.c:502 [inline] security_inode_init_security+0x2c8/0x3b0 security/security.c:475 ext4_init_security+0x34/0x40 fs/ext4/xattr_security.c:57 __ext4_new_inode+0x3b2f/0x52d0 fs/ext4/ialloc.c:1160 EXT4-fs error (device sda1): ext4_xattr_ibody_get:591: inode #16514: comm syz-executor.0: corrupted in-inode xattr IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready ext4_symlink+0x3f8/0xbe0 fs/ext4/namei.c:3125 vfs_symlink fs/namei.c:4126 [inline] vfs_symlink+0x373/0x5c0 fs/namei.c:4112 do_symlinkat+0x22b/0x290 fs/namei.c:4153 8021q: adding VLAN 0 to HW filter on device batadv0 __do_sys_symlink fs/namei.c:4172 [inline] __se_sys_symlink fs/namei.c:4170 [inline] __x64_sys_symlink+0x59/0x80 fs/namei.c:4170 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 EXT4-fs error (device sda1): ext4_xattr_set_entry:1607: inode #16520: comm syz-executor.3: corrupted xattr entries entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45a637 Code: 0f 1f 00 b8 5c 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 6d b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 58 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 4d b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffc19bc9ba8 EFLAGS: 00000202 ORIG_RAX: 0000000000000058 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000045a637 RDX: 00007ffc19bc9c47 RSI: 00000000004c0369 RDI: 00007ffc19bc9c30 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000017 R10: 0000000000000075 R11: 0000000000000202 R12: 0000000000000001 R13: 00007ffc19bc9be0 R14: 0000000000000000 R15: 00007ffc19bc9bf0 The buggy address belongs to the page: page:ffffea0001e898c0 count:0 mapcount:0 mapping:0000000000000000 index:0x1 flags: 0xfffe0000000000() raw: 00fffe0000000000 ffffea0001e89c48 ffffea0001e80848 0000000000000000 raw: 0000000000000001 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88807a262f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff88807a263000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff88807a263080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ^ ffff88807a263100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88807a263180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ================================================================== IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready EXT4-fs error (device sda1): ext4_xattr_ibody_get:591: inode #16514: comm syz-executor.0: corrupted in-inode xattr IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready EXT4-fs error (device sda1): ext4_xattr_ibody_get:591: inode #16512: comm syz-executor.1: corrupted in-inode xattr IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready