====================================================== WARNING: possible circular locking dependency detected 4.14.256-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.5/13805 is trying to acquire lock: (&sig->cred_guard_mutex){+.+.}, at: [] lock_trace fs/proc/base.c:407 [inline] (&sig->cred_guard_mutex){+.+.}, at: [] proc_pid_syscall+0xa7/0x2a0 fs/proc/base.c:639 but task is already holding lock: (&p->lock){+.+.}, at: [] seq_read+0xba/0x1180 fs/seq_file.c:168 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&p->lock){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 seq_read+0xba/0x1180 fs/seq_file.c:168 proc_reg_read+0xee/0x1a0 fs/proc/inode.c:217 do_loop_readv_writev fs/read_write.c:695 [inline] do_loop_readv_writev fs/read_write.c:682 [inline] do_iter_read+0x3eb/0x5b0 fs/read_write.c:919 vfs_readv+0xc8/0x120 fs/read_write.c:981 kernel_readv fs/splice.c:361 [inline] default_file_splice_read+0x418/0x910 fs/splice.c:416 do_splice_to+0xfb/0x140 fs/splice.c:880 splice_direct_to_actor+0x207/0x730 fs/splice.c:952 do_splice_direct+0x164/0x210 fs/splice.c:1061 do_sendfile+0x47f/0xb30 fs/read_write.c:1441 SYSC_sendfile64 fs/read_write.c:1502 [inline] SyS_sendfile64+0xff/0x110 fs/read_write.c:1488 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb -> #2 (sb_writers#3){.+.+}: percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] __sb_start_write+0x64/0x260 fs/super.c:1342 sb_start_write include/linux/fs.h:1549 [inline] mnt_want_write+0x3a/0xb0 fs/namespace.c:386 ovl_xattr_set+0x4d/0x290 fs/overlayfs/inode.c:214 __vfs_setxattr+0xdc/0x130 fs/xattr.c:150 __vfs_setxattr_noperm+0xfd/0x3d0 fs/xattr.c:181 __vfs_setxattr_locked+0x14d/0x250 fs/xattr.c:239 vfs_setxattr+0xcf/0x230 fs/xattr.c:256 setxattr+0x1a9/0x300 fs/xattr.c:523 path_setxattr+0x118/0x130 fs/xattr.c:542 SYSC_lsetxattr fs/xattr.c:564 [inline] SyS_lsetxattr+0x33/0x40 fs/xattr.c:560 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb -> #1 (&ovl_i_mutex_dir_key[depth]){++++}: down_read+0x36/0x80 kernel/locking/rwsem.c:24 inode_lock_shared include/linux/fs.h:729 [inline] do_last fs/namei.c:3333 [inline] path_openat+0x149b/0x2970 fs/namei.c:3569 do_filp_open+0x179/0x3c0 fs/namei.c:3603 do_open_execat+0xd3/0x450 fs/exec.c:849 do_execveat_common+0x711/0x1f30 fs/exec.c:1755 do_execve fs/exec.c:1860 [inline] SYSC_execve fs/exec.c:1941 [inline] SyS_execve+0x3b/0x50 fs/exec.c:1936 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb -> #0 (&sig->cred_guard_mutex){+.+.}: lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 lock_trace fs/proc/base.c:407 [inline] proc_pid_syscall+0xa7/0x2a0 fs/proc/base.c:639 proc_single_show+0xe7/0x150 fs/proc/base.c:761 seq_read+0x4e4/0x1180 fs/seq_file.c:240 do_loop_readv_writev fs/read_write.c:695 [inline] do_loop_readv_writev fs/read_write.c:682 [inline] do_iter_read+0x3eb/0x5b0 fs/read_write.c:919 vfs_readv+0xc8/0x120 fs/read_write.c:981 do_preadv fs/read_write.c:1065 [inline] SYSC_preadv fs/read_write.c:1115 [inline] SyS_preadv+0x15a/0x200 fs/read_write.c:1110 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb other info that might help us debug this: Chain exists of: &sig->cred_guard_mutex --> sb_writers#3 --> &p->lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&p->lock); lock(sb_writers#3); lock(&p->lock); lock(&sig->cred_guard_mutex); *** DEADLOCK *** 1 lock held by syz-executor.5/13805: #0: (&p->lock){+.+.}, at: [] seq_read+0xba/0x1180 fs/seq_file.c:168 stack backtrace: CPU: 0 PID: 13805 Comm: syz-executor.5 Not tainted 4.14.256-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1905 [inline] check_prevs_add kernel/locking/lockdep.c:2022 [inline] validate_chain kernel/locking/lockdep.c:2464 [inline] __lock_acquire+0x2e0e/0x3f20 kernel/locking/lockdep.c:3491 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 lock_trace fs/proc/base.c:407 [inline] proc_pid_syscall+0xa7/0x2a0 fs/proc/base.c:639 proc_single_show+0xe7/0x150 fs/proc/base.c:761 seq_read+0x4e4/0x1180 fs/seq_file.c:240 do_loop_readv_writev fs/read_write.c:695 [inline] do_loop_readv_writev fs/read_write.c:682 [inline] do_iter_read+0x3eb/0x5b0 fs/read_write.c:919 vfs_readv+0xc8/0x120 fs/read_write.c:981 do_preadv fs/read_write.c:1065 [inline] SYSC_preadv fs/read_write.c:1115 [inline] SyS_preadv+0x15a/0x200 fs/read_write.c:1110 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f9b919d8ae9 RSP: 002b:00007f9b9094e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000127 RAX: ffffffffffffffda RBX: 00007f9b91aebf60 RCX: 00007f9b919d8ae9 RDX: 000000000000037d RSI: 0000000020000500 RDI: 0000000000000005 RBP: 00007f9b91a32ff7 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe18ce971f R14: 00007f9b9094e300 R15: 0000000000022000 audit: type=1800 audit(1638702923.607:26): pid=13820 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.0" name="file1" dev="sda1" ino=14336 res=0 IPv6: NLM_F_REPLACE set, but no existing node found! IPv6: NLM_F_REPLACE set, but no existing node found! squashfs: SQUASHFS error: unable to read xattr id index table dccp_v6_rcv: dropped packet with invalid checksum dccp_v6_rcv: dropped packet with invalid checksum EXT4-fs error (device loop0): __ext4_iget:4959: inode #2: block 58124: comm syz-executor.0: invalid block EXT4-fs (loop0): get root inode failed EXT4-fs (loop0): mount failed EXT4-fs error (device loop0): __ext4_iget:4959: inode #2: block 58124: comm syz-executor.0: invalid block EXT4-fs (loop0): get root inode failed EXT4-fs (loop0): mount failed FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on loop4 CPU: 0 PID: 14134 Comm: syz-executor.0 Not tainted 4.14.256-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3297 [inline] kmem_cache_alloc_node+0x263/0x410 mm/slab.c:3640 __alloc_skb+0x5c/0x510 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:980 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1166 [inline] netlink_sendmsg+0x90b/0xb90 net/netlink/af_netlink.c:1861 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f5d8ea6cae9 RSP: 002b:00007f5d8d9e2188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5d8eb7ff60 RCX: 00007f5d8ea6cae9 RDX: 0000000000000000 RSI: 000000002000c2c0 RDI: 0000000000000003 RBP: 00007f5d8d9e21d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff2920e75f R14: 00007f5d8d9e2300 R15: 0000000000022000 squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on loop4 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 14196 Comm: syz-executor.0 Not tainted 4.14.256-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3297 [inline] kmem_cache_alloc_node_trace+0x25a/0x400 mm/slab.c:3659 __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node_track_caller+0x38/0x70 mm/slab.c:3696 __kmalloc_reserve net/core/skbuff.c:137 [inline] __alloc_skb+0x96/0x510 net/core/skbuff.c:205 alloc_skb include/linux/skbuff.h:980 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1166 [inline] netlink_sendmsg+0x90b/0xb90 net/netlink/af_netlink.c:1861 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f5d8ea6cae9 RSP: 002b:00007f5d8d9e2188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5d8eb7ff60 RCX: 00007f5d8ea6cae9 RDX: 0000000000000000 RSI: 000000002000c2c0 RDI: 0000000000000003 RBP: 00007f5d8d9e21d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff2920e75f R14: 00007f5d8d9e2300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 14220 Comm: syz-executor.0 Not tainted 4.14.256-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 skb_clone+0x126/0x9a0 net/core/skbuff.c:1291 __netlink_deliver_tap_skb net/netlink/af_netlink.c:266 [inline] __netlink_deliver_tap net/netlink/af_netlink.c:291 [inline] netlink_deliver_tap+0x655/0x7d0 net/netlink/af_netlink.c:302 netlink_deliver_tap_kernel net/netlink/af_netlink.c:311 [inline] netlink_unicast_kernel net/netlink/af_netlink.c:1293 [inline] netlink_unicast+0x485/0x610 net/netlink/af_netlink.c:1320 netlink_sendmsg+0x638/0xb90 net/netlink/af_netlink.c:1886 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f5d8ea6cae9 RSP: 002b:00007f5d8d9e2188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5d8eb7ff60 RCX: 00007f5d8ea6cae9 RDX: 0000000000000000 RSI: 000000002000c2c0 RDI: 0000000000000003 RBP: 00007f5d8d9e21d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff2920e75f R14: 00007f5d8d9e2300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 EXT4-fs (loop4): Unrecognized mount option "7" or missing value CPU: 0 PID: 14260 Comm: syz-executor.0 Not tainted 4.14.256-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x28e/0x3c0 mm/slab.c:3550 skb_clone+0x126/0x9a0 net/core/skbuff.c:1291 netlink_skb_clone include/linux/netlink.h:147 [inline] nfnetlink_rcv_batch net/netfilter/nfnetlink.c:299 [inline] nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:495 [inline] nfnetlink_rcv+0x47c/0x1da0 net/netfilter/nfnetlink.c:513 netlink_unicast_kernel net/netlink/af_netlink.c:1294 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1320 netlink_sendmsg+0x638/0xb90 net/netlink/af_netlink.c:1886 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f5d8ea6cae9 RSP: 002b:00007f5d8d9e2188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5d8eb7ff60 RCX: 00007f5d8ea6cae9 RDX: 0000000000000000 RSI: 000000002000c2c0 RDI: 0000000000000003 RBP: 00007f5d8d9e21d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff2920e75f R14: 00007f5d8d9e2300 R15: 0000000000022000 print_req_error: I/O error, dev loop4, sector 0 Buffer I/O error on dev loop4, logical block 0, async page read print_req_error: I/O error, dev loop4, sector 4 Buffer I/O error on dev loop4, logical block 2, async page read print_req_error: I/O error, dev loop4, sector 6 Buffer I/O error on dev loop4, logical block 3, async page read EXT4-fs (loop4): Unrecognized mount option "7" or missing value FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 BTRFS: device fsid 9fd069f9-9b51-4f58-b143-43c07f72f4a9 devid 1 transid 7 /dev/loop4 CPU: 1 PID: 14313 Comm: syz-executor.0 Not tainted 4.14.256-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x2c1/0x400 mm/slab.c:3729 kmalloc include/linux/slab.h:493 [inline] kzalloc include/linux/slab.h:661 [inline] nft_trans_alloc_gfp+0x28/0x170 net/netfilter/nf_tables_api.c:120 nft_trans_alloc net/netfilter/nf_tables_api.c:133 [inline] nft_trans_table_add+0x2e/0x2a0 net/netfilter/nf_tables_api.c:171 nft_deltable net/netfilter/nf_tables_api.c:186 [inline] nft_flush_table+0x73c/0xaa0 net/netfilter/nf_tables_api.c:847 nft_flush net/netfilter/nf_tables_api.c:874 [inline] nf_tables_deltable+0x55d/0x790 net/netfilter/nf_tables_api.c:897 nfnetlink_rcv_batch net/netfilter/nfnetlink.c:394 [inline] nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:495 [inline] nfnetlink_rcv+0x954/0x1da0 net/netfilter/nfnetlink.c:513 netlink_unicast_kernel net/netlink/af_netlink.c:1294 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1320 netlink_sendmsg+0x638/0xb90 net/netlink/af_netlink.c:1886 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f5d8ea6cae9 RSP: 002b:00007f5d8d9e2188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5d8eb7ff60 RCX: 00007f5d8ea6cae9 RDX: 0000000000000000 RSI: 000000002000c2c0 RDI: 0000000000000003 RBP: 00007f5d8d9e21d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff2920e75f R14: 00007f5d8d9e2300 R15: 0000000000022000 BTRFS error (device loop4): superblock checksum mismatch BTRFS error (device loop4): open_ctree failed FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 BTRFS error (device loop4): superblock checksum mismatch CPU: 1 PID: 14368 Comm: syz-executor.0 Not tainted 4.14.256-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc_trace+0x29a/0x3d0 mm/slab.c:3616 kmalloc include/linux/slab.h:488 [inline] kzalloc include/linux/slab.h:661 [inline] nf_tables_newtable+0x6a3/0x11b0 net/netfilter/nf_tables_api.c:769 nfnetlink_rcv_batch net/netfilter/nfnetlink.c:394 [inline] nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:495 [inline] nfnetlink_rcv+0x954/0x1da0 net/netfilter/nfnetlink.c:513 netlink_unicast_kernel net/netlink/af_netlink.c:1294 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1320 netlink_sendmsg+0x638/0xb90 net/netlink/af_netlink.c:1886 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f5d8ea6cae9 RSP: 002b:00007f5d8d9e2188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5d8eb7ff60 RCX: 00007f5d8ea6cae9 RDX: 0000000000000000 RSI: 000000002000c2c0 RDI: 0000000000000003 RBP: 00007f5d8d9e21d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff2920e75f R14: 00007f5d8d9e2300 R15: 0000000000022000 BTRFS error (device loop4): open_ctree failed FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 14381 Comm: syz-executor.0 Not tainted 4.14.256-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x2c1/0x400 mm/slab.c:3729 kmalloc include/linux/slab.h:493 [inline] nla_strdup+0xb1/0x140 lib/nlattr.c:320 nf_tables_newtable+0x6c1/0x11b0 net/netfilter/nf_tables_api.c:773 nfnetlink_rcv_batch net/netfilter/nfnetlink.c:394 [inline] nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:495 [inline] nfnetlink_rcv+0x954/0x1da0 net/netfilter/nfnetlink.c:513 netlink_unicast_kernel net/netlink/af_netlink.c:1294 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1320 netlink_sendmsg+0x638/0xb90 net/netlink/af_netlink.c:1886 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f5d8ea6cae9 RSP: 002b:00007f5d8d9e2188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5d8eb7ff60 RCX: 00007f5d8ea6cae9 RDX: 0000000000000000 RSI: 000000002000c2c0 RDI: 0000000000000003 RBP: 00007f5d8d9e21d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff2920e75f R14: 00007f5d8d9e2300 R15: 0000000000022000 print_req_error: I/O error, dev loop4, sector 0 BTRFS error (device loop4): superblock checksum mismatch BTRFS error (device loop4): open_ctree failed FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 14436 Comm: syz-executor.0 Not tainted 4.14.256-syzkaller #0 BTRFS error (device loop4): superblock checksum mismatch Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x2c1/0x400 mm/slab.c:3729 kmalloc include/linux/slab.h:493 [inline] kzalloc include/linux/slab.h:661 [inline] nft_trans_alloc_gfp+0x28/0x170 net/netfilter/nf_tables_api.c:120 nft_trans_alloc net/netfilter/nf_tables_api.c:133 [inline] nft_trans_table_add+0x2e/0x2a0 net/netfilter/nf_tables_api.c:171 nf_tables_newtable+0x8f6/0x11b0 net/netfilter/nf_tables_api.c:783 nfnetlink_rcv_batch net/netfilter/nfnetlink.c:394 [inline] nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:495 [inline] nfnetlink_rcv+0x954/0x1da0 net/netfilter/nfnetlink.c:513 netlink_unicast_kernel net/netlink/af_netlink.c:1294 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1320 netlink_sendmsg+0x638/0xb90 net/netlink/af_netlink.c:1886 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f5d8ea6cae9 RSP: 002b:00007f5d8d9e2188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5d8eb7ff60 RCX: 00007f5d8ea6cae9 RDX: 0000000000000000 RSI: 000000002000c2c0 RDI: 0000000000000003 RBP: 00007f5d8d9e21d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff2920e75f R14: 00007f5d8d9e2300 R15: 0000000000022000 loop3: p2 < > p3 p4 loop3: p3 size 1912633224 extends beyond EOD, truncated loop3: p4 size 3657465856 extends beyond EOD, truncated BTRFS error (device loop4): open_ctree failed BTRFS error (device loop4): superblock checksum mismatch BTRFS error (device loop4): open_ctree failed FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 14502 Comm: syz-executor.0 Not tainted 4.14.256-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3297 [inline] kmem_cache_alloc_node+0x263/0x410 mm/slab.c:3640 __alloc_skb+0x5c/0x510 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:980 [inline] nlmsg_new include/net/netlink.h:511 [inline] nf_tables_gen_notify net/netfilter/nf_tables_api.c:4921 [inline] nf_tables_commit+0x1655/0x2720 net/netfilter/nf_tables_api.c:5240 nfnetlink_rcv_batch net/netfilter/nfnetlink.c:446 [inline] nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:495 [inline] nfnetlink_rcv+0x15ec/0x1da0 net/netfilter/nfnetlink.c:513 netlink_unicast_kernel net/netlink/af_netlink.c:1294 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1320 netlink_sendmsg+0x638/0xb90 net/netlink/af_netlink.c:1886 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f5d8ea6cae9 RSP: 002b:00007f5d8d9e2188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5d8eb7ff60 RCX: 00007f5d8ea6cae9 RDX: 0000000000000000 RSI: 000000002000c2c0 RDI: 0000000000000003 RBP: 00007f5d8d9e21d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fff2920e75f R14: 00007f5d8d9e2300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 14550 Comm: syz-executor.0 Not tainted 4.14.256-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3297 [inline] kmem_cache_alloc_node_trace+0x25a/0x400 mm/slab.c:3659 __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node_track_caller+0x38/0x70 mm/slab.c:3696 __kmalloc_reserve net/core/skbuff.c:137 [inline] __alloc_skb+0x96/0x510 net/core/skbuff.c:205 alloc_skb include/linux/skbuff.h:980 [inline] nlmsg_new include/net/netlink.h:511 [inline] nf_tables_gen_notify net/netfilter/nf_tables_api.c:4921 [inline] nf_tables_commit+0x1655/0x2720 net/netfilter/nf_tables_api.c:5240 nfnetlink_rcv_batch net/netfilter/nfnetlink.c:446 [inline] nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:495 [inline] nfnetlink_rcv+0x15ec/0x1da0 net/netfilter/nfnetlink.c:513 netlink_unicast_kernel net/netlink/af_netlink.c:1294 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1320 netlink_sendmsg+0x638/0xb90 net/netlink/af_netlink.c:1886 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f5d8ea6cae9 RSP: 002b:00007f5d8d9e2188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5d8eb7ff60 RCX: 00007f5d8ea6cae9 RDX: 0000000000000000 RSI: 000000002000c2c0 RDI: 0000000000000003 RBP: 00007f5d8d9e21d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007fff2920e75f R14: 00007f5d8d9e2300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 14597 Comm: syz-executor.0 Not tainted 4.14.256-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3297 [inline] kmem_cache_alloc_node_trace+0x58/0x400 mm/slab.c:3659 __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node_track_caller+0x38/0x70 mm/slab.c:3696 __kmalloc_reserve net/core/skbuff.c:137 [inline] pskb_expand_head+0x128/0xd30 net/core/skbuff.c:1471 netlink_trim+0x1ae/0x220 net/netlink/af_netlink.c:1276 netlink_broadcast_filtered+0x5d/0x9e0 net/netlink/af_netlink.c:1473 netlink_broadcast net/netlink/af_netlink.c:1518 [inline] nlmsg_multicast include/net/netlink.h:591 [inline] nlmsg_notify+0x129/0x1b0 net/netlink/af_netlink.c:2484 nf_tables_gen_notify net/netfilter/nf_tables_api.c:4932 [inline] nf_tables_commit+0x176e/0x2720 net/netfilter/nf_tables_api.c:5240 nfnetlink_rcv_batch net/netfilter/nfnetlink.c:446 [inline] nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:495 [inline] nfnetlink_rcv+0x15ec/0x1da0 net/netfilter/nfnetlink.c:513 netlink_unicast_kernel net/netlink/af_netlink.c:1294 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1320 netlink_sendmsg+0x638/0xb90 net/netlink/af_netlink.c:1886 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f5d8ea6cae9 RSP: 002b:00007f5d8d9e2188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f5d8eb7ff60 RCX: 00007f5d8ea6cae9 RDX: 0000000000000000 RSI: 000000002000c2c0 RDI: 0000000000000003 RBP: 00007f5d8d9e21d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007fff2920e75f R14: 00007f5d8d9e2300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 14733 Comm: syz-executor.2 Not tainted 4.14.256-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3297 [inline] kmem_cache_alloc_node+0x263/0x410 mm/slab.c:3640 __alloc_skb+0x5c/0x510 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:980 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1166 [inline] netlink_sendmsg+0x90b/0xb90 net/netlink/af_netlink.c:1861 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f785dd88ae9 RSP: 002b:00007f785ccfe188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f785de9bf60 RCX: 00007f785dd88ae9 RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003 RBP: 00007f785ccfe1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc72f30eef R14: 00007f785ccfe300 R15: 0000000000022000 CPU: 0 PID: 14737 Comm: syz-executor.5 Not tainted 4.14.256-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3297 [inline] kmem_cache_alloc_node+0x263/0x410 mm/slab.c:3640 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'. __alloc_skb+0x5c/0x510 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:980 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1166 [inline] netlink_sendmsg+0x90b/0xb90 net/netlink/af_netlink.c:1861 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f9b919d8ae9 RSP: 002b:00007f9b9094e188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f9b91aebf60 RCX: 00007f9b919d8ae9 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 00007f9b9094e1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffe18ce971f R14: 00007f9b9094e300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 14775 Comm: syz-executor.2 Not tainted 4.14.256-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3297 [inline] kmem_cache_alloc_node_trace+0x25a/0x400 mm/slab.c:3659 __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node_track_caller+0x38/0x70 mm/slab.c:3696 __kmalloc_reserve net/core/skbuff.c:137 [inline] __alloc_skb+0x96/0x510 net/core/skbuff.c:205 alloc_skb include/linux/skbuff.h:980 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1166 [inline] netlink_sendmsg+0x90b/0xb90 net/netlink/af_netlink.c:1861 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f785dd88ae9 RSP: 002b:00007f785ccfe188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f785de9bf60 RCX: 00007f785dd88ae9 RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003 RBP: 00007f785ccfe1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc72f30eef R14: 00007f785ccfe300 R15: 0000000000022000 print_req_error: I/O error, dev loop3, sector 0 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 14787 Comm: syz-executor.5 Not tainted 4.14.256-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3297 [inline] kmem_cache_alloc_node_trace+0x25a/0x400 mm/slab.c:3659 __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node_track_caller+0x38/0x70 mm/slab.c:3696 __kmalloc_reserve net/core/skbuff.c:137 [inline] __alloc_skb+0x96/0x510 net/core/skbuff.c:205 alloc_skb include/linux/skbuff.h:980 [inline] netlink_alloc_large_skb net/netlink/af_netlink.c:1166 [inline] netlink_sendmsg+0x90b/0xb90 net/netlink/af_netlink.c:1861 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f9b919d8ae9 RSP: 002b:00007f9b9094e188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f9b91aebf60 RCX: 00007f9b919d8ae9 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 00007f9b9094e1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffe18ce971f R14: 00007f9b9094e300 R15: 0000000000022000 print_req_error: I/O error, dev loop3, sector 0 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready CPU: 0 PID: 14803 Comm: syz-executor.2 Not tainted 4.14.256-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 skb_clone+0x126/0x9a0 net/core/skbuff.c:1291 IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready __netlink_deliver_tap_skb net/netlink/af_netlink.c:266 [inline] __netlink_deliver_tap net/netlink/af_netlink.c:291 [inline] netlink_deliver_tap+0x655/0x7d0 net/netlink/af_netlink.c:302 netlink_deliver_tap_kernel net/netlink/af_netlink.c:311 [inline] netlink_unicast_kernel net/netlink/af_netlink.c:1293 [inline] netlink_unicast+0x485/0x610 net/netlink/af_netlink.c:1320 IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready netlink_sendmsg+0x638/0xb90 net/netlink/af_netlink.c:1886 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f785dd88ae9 RSP: 002b:00007f785ccfe188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f785de9bf60 RCX: 00007f785dd88ae9 RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003 RBP: 00007f785ccfe1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc72f30eef R14: 00007f785ccfe300 R15: 0000000000022000 CPU: 0 PID: 14809 Comm: syz-executor.5 Not tainted 4.14.256-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 skb_clone+0x126/0x9a0 net/core/skbuff.c:1291 __netlink_deliver_tap_skb net/netlink/af_netlink.c:266 [inline] __netlink_deliver_tap net/netlink/af_netlink.c:291 [inline] netlink_deliver_tap+0x655/0x7d0 net/netlink/af_netlink.c:302 netlink_deliver_tap_kernel net/netlink/af_netlink.c:311 [inline] netlink_unicast_kernel net/netlink/af_netlink.c:1293 [inline] netlink_unicast+0x485/0x610 net/netlink/af_netlink.c:1320 netlink_sendmsg+0x638/0xb90 net/netlink/af_netlink.c:1886 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f9b919d8ae9 RSP: 002b:00007f9b9094e188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f9b91aebf60 RCX: 00007f9b919d8ae9 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 00007f9b9094e1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffe18ce971f R14: 00007f9b9094e300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 14845 Comm: syz-executor.5 Not tainted 4.14.256-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] kmem_cache_alloc_trace+0x29a/0x3d0 mm/slab.c:3616 kmalloc include/linux/slab.h:488 [inline] kzalloc include/linux/slab.h:661 [inline] ip_set_create+0x434/0xfd0 net/netfilter/ipset/ip_set_core.c:884 nfnetlink_rcv_msg+0x9bb/0xc00 net/netfilter/nfnetlink.c:214 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2441 nfnetlink_rcv+0x1ab/0x1da0 net/netfilter/nfnetlink.c:515 netlink_unicast_kernel net/netlink/af_netlink.c:1294 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1320 netlink_sendmsg+0x638/0xb90 net/netlink/af_netlink.c:1886 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f9b919d8ae9 RSP: 002b:00007f9b9094e188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f9b91aebf60 RCX: 00007f9b919d8ae9 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 00007f9b9094e1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffe18ce971f R14: 00007f9b9094e300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 14852 Comm: syz-executor.2 Not tainted 4.14.256-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011