nla_parse: 2 callbacks suppressed netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. ====================================================== WARNING: possible circular locking dependency detected 4.14.287-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.1/11654 is trying to acquire lock: (&xt[i].mutex){+.+.}, at: [] xt_find_target+0x3e/0x1e0 net/netfilter/x_tables.c:232 but task is already holding lock: (rtnl_mutex){+.+.}, at: [] rtnl_lock net/core/rtnetlink.c:72 [inline] (rtnl_mutex){+.+.}, at: [] rtnetlink_rcv_msg+0x31d/0xb10 net/core/rtnetlink.c:4317 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (rtnl_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 unregister_netdevice_notifier+0x5e/0x2b0 net/core/dev.c:1630 tee_tg_destroy+0x5c/0xb0 net/netfilter/xt_TEE.c:123 cleanup_entry+0x1fd/0x2d0 net/ipv4/netfilter/ip_tables.c:666 __do_replace+0x38d/0x570 net/ipv4/netfilter/ip_tables.c:1086 do_replace net/ipv4/netfilter/ip_tables.c:1142 [inline] do_ipt_set_ctl+0x256/0x3a0 net/ipv4/netfilter/ip_tables.c:1676 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x5f/0xb0 net/netfilter/nf_sockopt.c:115 ip_setsockopt net/ipv4/ip_sockglue.c:1255 [inline] ip_setsockopt+0x94/0xb0 net/ipv4/ip_sockglue.c:1240 tcp_setsockopt+0x7b/0xc0 net/ipv4/tcp.c:2830 SYSC_setsockopt net/socket.c:1865 [inline] SyS_setsockopt+0x110/0x1e0 net/socket.c:1844 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb -> #0 (&xt[i].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 xt_find_target+0x3e/0x1e0 net/netfilter/x_tables.c:232 xt_request_find_target net/netfilter/x_tables.c:261 [inline] xt_request_find_target+0x72/0xe0 net/netfilter/x_tables.c:254 ipt_init_target+0xb9/0x250 net/sched/act_ipt.c:45 __tcf_ipt_init+0x48d/0xc00 net/sched/act_ipt.c:168 tcf_xt_init+0x43/0x50 net/sched/act_ipt.c:210 tcf_action_init_1+0x51a/0x9e0 net/sched/act_api.c:691 tcf_action_init+0x26d/0x400 net/sched/act_api.c:760 tcf_action_add net/sched/act_api.c:1088 [inline] tc_ctl_action+0x2e3/0x510 net/sched/act_api.c:1140 rtnetlink_rcv_msg+0x3be/0xb10 net/core/rtnetlink.c:4322 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2454 netlink_unicast_kernel net/netlink/af_netlink.c:1296 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1322 netlink_sendmsg+0x648/0xbc0 net/netlink/af_netlink.c:1893 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 sock_no_sendpage+0xe2/0x110 net/core/sock.c:2610 kernel_sendpage net/socket.c:3407 [inline] sock_sendpage+0xdf/0x140 net/socket.c:871 pipe_to_sendpage+0x226/0x2d0 fs/splice.c:451 splice_from_pipe_feed fs/splice.c:502 [inline] __splice_from_pipe+0x326/0x7a0 fs/splice.c:626 splice_from_pipe fs/splice.c:661 [inline] generic_splice_sendpage+0xc1/0x110 fs/splice.c:832 do_splice_from fs/splice.c:851 [inline] do_splice fs/splice.c:1147 [inline] SYSC_splice fs/splice.c:1402 [inline] SyS_splice+0xd59/0x1380 fs/splice.c:1382 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: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(rtnl_mutex); lock(&xt[i].mutex); lock(rtnl_mutex); lock(&xt[i].mutex); *** DEADLOCK *** 2 locks held by syz-executor.1/11654: #0: (&pipe->mutex/1){+.+.}, at: [] pipe_lock_nested fs/pipe.c:82 [inline] #0: (&pipe->mutex/1){+.+.}, at: [] pipe_lock+0x58/0x70 fs/pipe.c:90 #1: (rtnl_mutex){+.+.}, at: [] rtnl_lock net/core/rtnetlink.c:72 [inline] #1: (rtnl_mutex){+.+.}, at: [] rtnetlink_rcv_msg+0x31d/0xb10 net/core/rtnetlink.c:4317 stack backtrace: CPU: 0 PID: 11654 Comm: syz-executor.1 Not tainted 4.14.287-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 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 xt_find_target+0x3e/0x1e0 net/netfilter/x_tables.c:232 xt_request_find_target net/netfilter/x_tables.c:261 [inline] xt_request_find_target+0x72/0xe0 net/netfilter/x_tables.c:254 ipt_init_target+0xb9/0x250 net/sched/act_ipt.c:45 __tcf_ipt_init+0x48d/0xc00 net/sched/act_ipt.c:168 tcf_xt_init+0x43/0x50 net/sched/act_ipt.c:210 tcf_action_init_1+0x51a/0x9e0 net/sched/act_api.c:691 tcf_action_init+0x26d/0x400 net/sched/act_api.c:760 tcf_action_add net/sched/act_api.c:1088 [inline] tc_ctl_action+0x2e3/0x510 net/sched/act_api.c:1140 rtnetlink_rcv_msg+0x3be/0xb10 net/core/rtnetlink.c:4322 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2454 netlink_unicast_kernel net/netlink/af_netlink.c:1296 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1322 netlink_sendmsg+0x648/0xbc0 net/netlink/af_netlink.c:1893 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 sock_no_sendpage+0xe2/0x110 net/core/sock.c:2610 kernel_sendpage net/socket.c:3407 [inline] sock_sendpage+0xdf/0x140 net/socket.c:871 pipe_to_sendpage+0x226/0x2d0 fs/splice.c:451 splice_from_pipe_feed fs/splice.c:502 [inline] __splice_from_pipe+0x326/0x7a0 fs/splice.c:626 splice_from_pipe fs/splice.c:661 [inline] generic_splice_sendpage+0xc1/0x110 fs/splice.c:832 do_splice_from fs/splice.c:851 [inline] do_splice fs/splice.c:1147 [inline] SYSC_splice fs/splice.c:1402 [inline] SyS_splice+0xd59/0x1380 fs/splice.c:1382 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f84142ab109 RSP: 002b:00007f8412bff168 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 00007f84143be030 RCX: 00007f84142ab109 RDX: 0000000000000006 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f841430505d R08: 000000000004ffe0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe7706f7ff R14: 00007f8412bff300 R15: 0000000000022000 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.1'. FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 CPU: 1 PID: 12333 Comm: syz-executor.3 Not tainted 4.14.287-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 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+0x47/0x3d0 mm/slab.c:3616 kmalloc include/linux/slab.h:488 [inline] bdi_split_work_to_wbs+0x288/0xcf0 fs/fs-writeback.c:879 __writeback_inodes_sb_nr+0x159/0x1d0 fs/fs-writeback.c:2342 __sync_filesystem fs/sync.c:36 [inline] sync_filesystem fs/sync.c:64 [inline] sync_filesystem+0x8c/0x230 fs/sync.c:48 SYSC_syncfs fs/sync.c:166 [inline] SyS_syncfs+0x89/0xe0 fs/sync.c:155 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fae28797109 RSP: 002b:00007fae2710c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000132 RAX: ffffffffffffffda RBX: 00007fae288a9f60 RCX: 00007fae28797109 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007fae2710c1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffee2855a0f R14: 00007fae2710c300 R15: 0000000000022000 CPU: 0 PID: 12335 Comm: syz-executor.4 Not tainted 4.14.287-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 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+0x47/0x3d0 mm/slab.c:3616 kmalloc include/linux/slab.h:488 [inline] bdi_split_work_to_wbs+0x288/0xcf0 fs/fs-writeback.c:879 __writeback_inodes_sb_nr+0x159/0x1d0 fs/fs-writeback.c:2342 __sync_filesystem fs/sync.c:36 [inline] sync_filesystem fs/sync.c:64 [inline] sync_filesystem+0x8c/0x230 fs/sync.c:48 SYSC_syncfs fs/sync.c:166 [inline] SyS_syncfs+0x89/0xe0 fs/sync.c:155 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f06894b1109 RSP: 002b:00007f0687e26168 EFLAGS: 00000246 ORIG_RAX: 0000000000000132 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 RAX: ffffffffffffffda RBX: 00007f06895c3f60 RCX: 00007f06894b1109 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f0687e261d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffcbf3d22af R14: 00007f0687e26300 R15: 0000000000022000 CPU: 1 PID: 12357 Comm: syz-executor.3 Not tainted 4.14.287-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 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 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bio_alloc_bioset+0x41b/0x830 block/bio.c:486 bio_alloc include/linux/bio.h:422 [inline] submit_bh_wbc+0xf5/0x6f0 fs/buffer.c:3121 __block_write_full_page+0x4ee/0x9f0 fs/buffer.c:1838 block_write_full_page+0x1d0/0x240 fs/buffer.c:3008 __writepage+0x5a/0xc0 mm/page-writeback.c:2322 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 generic_writepages mm/page-writeback.c:2346 [inline] generic_writepages+0xc1/0x110 mm/page-writeback.c:2335 blkdev_writepages+0x78/0xd0 fs/block_dev.c:1986 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 __sync_blockdev fs/block_dev.c:474 [inline] __sync_blockdev+0x8a/0xc0 fs/block_dev.c:469 __sync_filesystem fs/sync.c:40 [inline] sync_filesystem fs/sync.c:64 [inline] sync_filesystem+0x117/0x230 fs/sync.c:48 SYSC_syncfs fs/sync.c:166 [inline] SyS_syncfs+0x89/0xe0 fs/sync.c:155 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fae28797109 RSP: 002b:00007fae2710c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000132 RAX: ffffffffffffffda RBX: 00007fae288a9f60 RCX: 00007fae28797109 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007fae2710c1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffee2855a0f R14: 00007fae2710c300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 12374 Comm: syz-executor.3 Not tainted 4.14.287-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 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+0x54/0x410 mm/slab.c:3640 create_task_io_context+0x2a/0x3c0 block/blk-ioc.c:278 create_io_context block/blk.h:323 [inline] generic_make_request_checks+0x1350/0x19f0 block/blk-core.c:2127 generic_make_request+0x67/0x850 block/blk-core.c:2185 submit_bio+0x234/0x390 block/blk-core.c:2303 submit_bh_wbc+0x526/0x6f0 fs/buffer.c:3147 __block_write_full_page+0x4ee/0x9f0 fs/buffer.c:1838 block_write_full_page+0x1d0/0x240 fs/buffer.c:3008 __writepage+0x5a/0xc0 mm/page-writeback.c:2322 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 generic_writepages mm/page-writeback.c:2346 [inline] generic_writepages+0xc1/0x110 mm/page-writeback.c:2335 blkdev_writepages+0x78/0xd0 fs/block_dev.c:1986 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 __sync_blockdev fs/block_dev.c:474 [inline] __sync_blockdev+0x8a/0xc0 fs/block_dev.c:469 __sync_filesystem fs/sync.c:40 [inline] sync_filesystem fs/sync.c:64 [inline] sync_filesystem+0x117/0x230 fs/sync.c:48 SYSC_syncfs fs/sync.c:166 [inline] SyS_syncfs+0x89/0xe0 fs/sync.c:155 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fae28797109 RSP: 002b:00007fae2710c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000132 RAX: ffffffffffffffda RBX: 00007fae288a9f60 RCX: 00007fae28797109 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007fae2710c1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffee2855a0f R14: 00007fae2710c300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 12382 Comm: syz-executor.4 Not tainted 4.14.287-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 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+0x47/0x3d0 mm/slab.c:3616 kmalloc include/linux/slab.h:488 [inline] bdi_split_work_to_wbs+0x288/0xcf0 fs/fs-writeback.c:879 sync_inodes_sb+0x168/0x880 fs/fs-writeback.c:2446 __sync_filesystem fs/sync.c:34 [inline] sync_filesystem fs/sync.c:67 [inline] sync_filesystem+0x12f/0x230 fs/sync.c:48 SYSC_syncfs fs/sync.c:166 [inline] SyS_syncfs+0x89/0xe0 fs/sync.c:155 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f06894b1109 RSP: 002b:00007f0687e26168 EFLAGS: 00000246 ORIG_RAX: 0000000000000132 RAX: ffffffffffffffda RBX: 00007f06895c3f60 RCX: 00007f06894b1109 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f0687e261d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffcbf3d22af R14: 00007f0687e26300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 12415 Comm: syz-executor.3 Not tainted 4.14.287-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 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 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bio_alloc_bioset+0x41b/0x830 block/bio.c:486 bio_alloc include/linux/bio.h:422 [inline] submit_bh_wbc+0xf5/0x6f0 fs/buffer.c:3121 __block_write_full_page+0x4ee/0x9f0 fs/buffer.c:1838 block_write_full_page+0x1d0/0x240 fs/buffer.c:3008 __writepage+0x5a/0xc0 mm/page-writeback.c:2322 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 generic_writepages mm/page-writeback.c:2346 [inline] generic_writepages+0xc1/0x110 mm/page-writeback.c:2335 blkdev_writepages+0x78/0xd0 fs/block_dev.c:1986 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 __sync_blockdev fs/block_dev.c:474 [inline] __sync_blockdev+0x8a/0xc0 fs/block_dev.c:469 __sync_filesystem fs/sync.c:40 [inline] sync_filesystem fs/sync.c:64 [inline] sync_filesystem+0x117/0x230 fs/sync.c:48 SYSC_syncfs fs/sync.c:166 [inline] SyS_syncfs+0x89/0xe0 fs/sync.c:155 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fae28797109 RSP: 002b:00007fae2710c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000132 RAX: ffffffffffffffda RBX: 00007fae288a9f60 RCX: 00007fae28797109 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007fae2710c1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffee2855a0f R14: 00007fae2710c300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 12419 Comm: syz-executor.4 Not tainted 4.14.287-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 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 mm/slab.c:3376 [inline] kmem_cache_alloc+0x40/0x3c0 mm/slab.c:3550 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bio_alloc_bioset+0x41b/0x830 block/bio.c:486 bio_alloc include/linux/bio.h:422 [inline] blkdev_issue_flush+0xeb/0x320 block/blk-flush.c:527 ext4_sync_fs+0x46f/0x7e0 fs/ext4/super.c:5077 __sync_filesystem fs/sync.c:39 [inline] sync_filesystem fs/sync.c:67 [inline] sync_filesystem+0x185/0x230 fs/sync.c:48 SYSC_syncfs fs/sync.c:166 [inline] SyS_syncfs+0x89/0xe0 fs/sync.c:155 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f06894b1109 RSP: 002b:00007f0687e26168 EFLAGS: 00000246 ORIG_RAX: 0000000000000132 RAX: ffffffffffffffda RBX: 00007f06895c3f60 RCX: 00007f06894b1109 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f0687e261d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffcbf3d22af R14: 00007f0687e26300 R15: 0000000000022000 CPU: 0 PID: 12445 Comm: syz-executor.3 Not tainted 4.14.287-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 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 hfsplus: unable to load nls mapping "none" hfsplus: unable to parse mount options 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 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bio_alloc_bioset+0x41b/0x830 block/bio.c:486 bio_alloc include/linux/bio.h:422 [inline] submit_bh_wbc+0xf5/0x6f0 fs/buffer.c:3121 __block_write_full_page+0x4ee/0x9f0 fs/buffer.c:1838 block_write_full_page+0x1d0/0x240 fs/buffer.c:3008 __writepage+0x5a/0xc0 mm/page-writeback.c:2322 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 generic_writepages mm/page-writeback.c:2346 [inline] generic_writepages+0xc1/0x110 mm/page-writeback.c:2335 blkdev_writepages+0x78/0xd0 fs/block_dev.c:1986 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 __sync_blockdev fs/block_dev.c:474 [inline] __sync_blockdev+0x8a/0xc0 fs/block_dev.c:469 __sync_filesystem fs/sync.c:40 [inline] sync_filesystem fs/sync.c:64 [inline] sync_filesystem+0x117/0x230 fs/sync.c:48 SYSC_syncfs fs/sync.c:166 [inline] SyS_syncfs+0x89/0xe0 fs/sync.c:155 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fae28797109 RSP: 002b:00007fae2710c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000132 RAX: ffffffffffffffda RBX: 00007fae288a9f60 RCX: 00007fae28797109 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007fae2710c1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffee2855a0f R14: 00007fae2710c300 R15: 0000000000022000 CPU: 1 PID: 12458 Comm: syz-executor.5 Not tainted 4.14.287-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 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+0x47/0x3d0 mm/slab.c:3616 kmalloc include/linux/slab.h:488 [inline] bdi_split_work_to_wbs+0x288/0xcf0 fs/fs-writeback.c:879 __writeback_inodes_sb_nr+0x159/0x1d0 fs/fs-writeback.c:2342 __sync_filesystem fs/sync.c:36 [inline] sync_filesystem fs/sync.c:64 [inline] sync_filesystem+0x8c/0x230 fs/sync.c:48 SYSC_syncfs fs/sync.c:166 [inline] SyS_syncfs+0x89/0xe0 fs/sync.c:155 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f9816fc3109 RSP: 002b:00007f9815938168 EFLAGS: 00000246 ORIG_RAX: 0000000000000132 RAX: ffffffffffffffda RBX: 00007f98170d5f60 RCX: 00007f9816fc3109 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f98159381d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc755d49df R14: 00007f9815938300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 12473 Comm: syz-executor.3 Not tainted 4.14.287-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 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 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 hfsplus: unable to load nls mapping "none" hfsplus: unable to parse mount options bio_alloc_bioset+0x41b/0x830 block/bio.c:486 bio_alloc include/linux/bio.h:422 [inline] submit_bh_wbc+0xf5/0x6f0 fs/buffer.c:3121 __block_write_full_page+0x4ee/0x9f0 fs/buffer.c:1838 block_write_full_page+0x1d0/0x240 fs/buffer.c:3008 __writepage+0x5a/0xc0 mm/page-writeback.c:2322 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 generic_writepages mm/page-writeback.c:2346 [inline] generic_writepages+0xc1/0x110 mm/page-writeback.c:2335 blkdev_writepages+0x78/0xd0 fs/block_dev.c:1986 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 __sync_blockdev fs/block_dev.c:474 [inline] __sync_blockdev+0x8a/0xc0 fs/block_dev.c:469 __sync_filesystem fs/sync.c:40 [inline] sync_filesystem fs/sync.c:64 [inline] sync_filesystem+0x117/0x230 fs/sync.c:48 SYSC_syncfs fs/sync.c:166 [inline] SyS_syncfs+0x89/0xe0 fs/sync.c:155 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fae28797109 RSP: 002b:00007fae2710c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000132 RAX: ffffffffffffffda RBX: 00007fae288a9f60 RCX: 00007fae28797109 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007fae2710c1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffee2855a0f R14: 00007fae2710c300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 hfsplus: unable to load nls mapping "none" hfsplus: unable to parse mount options CPU: 0 PID: 12506 Comm: syz-executor.3 Not tainted 4.14.287-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 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 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bio_alloc_bioset+0x41b/0x830 block/bio.c:486 bio_alloc include/linux/bio.h:422 [inline] submit_bh_wbc+0xf5/0x6f0 fs/buffer.c:3121 __block_write_full_page+0x4ee/0x9f0 fs/buffer.c:1838 block_write_full_page+0x1d0/0x240 fs/buffer.c:3008 __writepage+0x5a/0xc0 mm/page-writeback.c:2322 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 generic_writepages mm/page-writeback.c:2346 [inline] generic_writepages+0xc1/0x110 mm/page-writeback.c:2335 blkdev_writepages+0x78/0xd0 fs/block_dev.c:1986 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 __sync_blockdev fs/block_dev.c:474 [inline] __sync_blockdev+0x8a/0xc0 fs/block_dev.c:469 __sync_filesystem fs/sync.c:40 [inline] sync_filesystem fs/sync.c:64 [inline] sync_filesystem+0x117/0x230 fs/sync.c:48 SYSC_syncfs fs/sync.c:166 [inline] SyS_syncfs+0x89/0xe0 fs/sync.c:155 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fae28797109 RSP: 002b:00007fae2710c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000132 RAX: ffffffffffffffda RBX: 00007fae288a9f60 RCX: 00007fae28797109 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007fae2710c1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffee2855a0f R14: 00007fae2710c300 R15: 0000000000022000 hfsplus: unable to load nls mapping "none" hfsplus: unable to parse mount options audit: type=1804 audit(1657407346.544:45): pid=12863 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.5" name="/root/syzkaller-testdir42502333/syzkaller.e6uNGf/105/file0" dev="sda1" ino=14117 res=1 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 audit: type=1804 audit(1657407346.624:46): pid=12879 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.5" name="/root/syzkaller-testdir42502333/syzkaller.e6uNGf/106/file0" dev="sda1" ino=14128 res=1 CPU: 1 PID: 12868 Comm: syz-executor.0 Not tainted 4.14.287-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 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+0x47/0x3d0 mm/slab.c:3616 kmalloc include/linux/slab.h:488 [inline] bdi_split_work_to_wbs+0x288/0xcf0 fs/fs-writeback.c:879 __writeback_inodes_sb_nr+0x159/0x1d0 fs/fs-writeback.c:2342 __sync_filesystem fs/sync.c:36 [inline] sync_filesystem fs/sync.c:64 [inline] sync_filesystem+0x8c/0x230 fs/sync.c:48 SYSC_syncfs fs/sync.c:166 [inline] SyS_syncfs+0x89/0xe0 fs/sync.c:155 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f9688d6b109 RSP: 002b:00007f96876e0168 EFLAGS: 00000246 ORIG_RAX: 0000000000000132 RAX: ffffffffffffffda RBX: 00007f9688e7df60 RCX: 00007f9688d6b109 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f96876e01d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffd06c4414f R14: 00007f96876e0300 R15: 0000000000022000 audit: type=1804 audit(1657407346.814:47): pid=12883 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir1086420702/syzkaller.zkbVhk/119/file0" dev="sda1" ino=14135 res=1 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 audit: type=1804 audit(1657407346.854:48): pid=12905 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.5" name="/root/syzkaller-testdir42502333/syzkaller.e6uNGf/107/file0" dev="sda1" ino=14083 res=1 CPU: 0 PID: 12907 Comm: syz-executor.2 Not tainted 4.14.287-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 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+0x47/0x3d0 mm/slab.c:3616 kmalloc include/linux/slab.h:488 [inline] bdi_split_work_to_wbs+0x288/0xcf0 fs/fs-writeback.c:879 __writeback_inodes_sb_nr+0x159/0x1d0 fs/fs-writeback.c:2342 __sync_filesystem fs/sync.c:36 [inline] sync_filesystem fs/sync.c:64 [inline] sync_filesystem+0x8c/0x230 fs/sync.c:48 SYSC_syncfs fs/sync.c:166 [inline] SyS_syncfs+0x89/0xe0 fs/sync.c:155 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f4db0be7109 RSP: 002b:00007f4daf55c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000132 RAX: ffffffffffffffda RBX: 00007f4db0cf9f60 RCX: 00007f4db0be7109 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f4daf55c1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc62ac0abf R14: 00007f4daf55c300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 netlink: 40 bytes leftover after parsing attributes in process `syz-executor.1'. CPU: 0 PID: 12933 Comm: syz-executor.0 Not tainted 4.14.287-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 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 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bio_alloc_bioset+0x41b/0x830 block/bio.c:486 bio_alloc include/linux/bio.h:422 [inline] submit_bh_wbc+0xf5/0x6f0 fs/buffer.c:3121 __block_write_full_page+0x4ee/0x9f0 fs/buffer.c:1838 block_write_full_page+0x1d0/0x240 fs/buffer.c:3008 __writepage+0x5a/0xc0 mm/page-writeback.c:2322 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 generic_writepages mm/page-writeback.c:2346 [inline] generic_writepages+0xc1/0x110 mm/page-writeback.c:2335 blkdev_writepages+0x78/0xd0 fs/block_dev.c:1986 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 __sync_blockdev fs/block_dev.c:474 [inline] __sync_blockdev+0x8a/0xc0 fs/block_dev.c:469 __sync_filesystem fs/sync.c:40 [inline] sync_filesystem fs/sync.c:64 [inline] sync_filesystem+0x117/0x230 fs/sync.c:48 SYSC_syncfs fs/sync.c:166 [inline] SyS_syncfs+0x89/0xe0 fs/sync.c:155 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f9688d6b109 RSP: 002b:00007f96876e0168 EFLAGS: 00000246 ORIG_RAX: 0000000000000132 RAX: ffffffffffffffda RBX: 00007f9688e7df60 RCX: 00007f9688d6b109 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f96876e01d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffd06c4414f R14: 00007f96876e0300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 12942 Comm: syz-executor.2 Not tainted 4.14.287-syzkaller #0 netlink: 40 bytes leftover after parsing attributes in process `syz-executor.1'. Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 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 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bio_alloc_bioset+0x41b/0x830 block/bio.c:486 bio_alloc include/linux/bio.h:422 [inline] submit_bh_wbc+0xf5/0x6f0 fs/buffer.c:3121 __block_write_full_page+0x4ee/0x9f0 fs/buffer.c:1838 block_write_full_page+0x1d0/0x240 fs/buffer.c:3008 __writepage+0x5a/0xc0 mm/page-writeback.c:2322 write_cache_pages+0x505/0xd20 mm/page-writeback.c:2257 generic_writepages mm/page-writeback.c:2346 [inline] generic_writepages+0xc1/0x110 mm/page-writeback.c:2335 blkdev_writepages+0x78/0xd0 fs/block_dev.c:1986 do_writepages+0xc3/0x240 mm/page-writeback.c:2361 __filemap_fdatawrite_range+0x236/0x310 mm/filemap.c:346 __sync_blockdev fs/block_dev.c:474 [inline] __sync_blockdev+0x8a/0xc0 fs/block_dev.c:469 __sync_filesystem fs/sync.c:40 [inline] sync_filesystem fs/sync.c:64 [inline] sync_filesystem+0x117/0x230 fs/sync.c:48 SYSC_syncfs fs/sync.c:166 [inline] SyS_syncfs+0x89/0xe0 fs/sync.c:155 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f4db0be7109 RSP: 002b:00007f4daf55c168 EFLAGS: 00000246 ORIG_RAX: 0000000000000132 RAX: ffffffffffffffda RBX: 00007f4db0cf9f60 RCX: 00007f4db0be7109 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f4daf55c1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc62ac0abf R14: 00007f4daf55c300 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: 0 PID: 13005 Comm: syz-executor.0 Not tainted 4.14.287-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 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 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bio_alloc_bioset+0x41b/0x830 block/bio.c:486 bio_alloc include/linux/bio.h:422 [inline] blkdev_issue_flush+0xeb/0x320 block/blk-flush.c:527 ext4_sync_fs+0x46f/0x7e0 fs/ext4/super.c:5077 __sync_filesystem fs/sync.c:39 [inline] sync_filesystem fs/sync.c:67 [inline] sync_filesystem+0x185/0x230 fs/sync.c:48 SYSC_syncfs fs/sync.c:166 [inline] SyS_syncfs+0x89/0xe0 fs/sync.c:155 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f9688d6b109 RSP: 002b:00007f96876e0168 EFLAGS: 00000246 ORIG_RAX: 0000000000000132 RAX: ffffffffffffffda RBX: 00007f9688e7df60 RCX: 00007f9688d6b109 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f96876e01d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffd06c4414f R14: 00007f96876e0300 R15: 0000000000022000 netlink: 40 bytes leftover after parsing attributes in process `syz-executor.1'. CPU: 0 PID: 13010 Comm: syz-executor.2 Not tainted 4.14.287-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 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 mempool_alloc+0x10e/0x2d0 mm/mempool.c:330 bio_alloc_bioset+0x41b/0x830 block/bio.c:486 bio_alloc include/linux/bio.h:422 [inline] blkdev_issue_flush+0xeb/0x320 block/blk-flush.c:527