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WARNING: suspicious RCU usage in 4

Status: auto-closed as invalid on 2019/12/05 20:57
Reported-by: syzbot+bea346b975952d8f76c9@syzkaller.appspotmail.com
First crash: 1763d, last: 1723d
▶ ▼ Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 WARNING: suspicious RCU usage in 4 (3) 1 1191d 1191d 0/1 auto-closed as invalid on 2021/05/21 06:13
linux-4.14 WARNING: suspicious RCU usage in 4 (2) 3 1393d 1525d 0/1 auto-closed as invalid on 2020/10/31 00:33
android-414 WARNING: suspicious RCU usage in 4 1 1627d 1627d 0/1 auto-closed as invalid on 2020/03/10 17:38

Sample crash report:
=============================
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
WARNING: suspicious RCU usage
CPU: 1 PID: 12070 Comm: syz-executor.4 Not tainted 4.14.137 #33
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+0x138/0x19c lib/dump_stack.c:53
4.14.137 #33 Not tainted
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_failslab+0xdb/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+0x280/0x770 mm/slab.c:3659
-----------------------------
 __do_kmalloc_node mm/slab.c:3681 [inline]
 __kmalloc_node_track_caller+0x3d/0x80 mm/slab.c:3696
net/tipc/bearer.c:177 suspicious rcu_dereference_protected() usage!
 __kmalloc_reserve.isra.0+0x40/0xe0 net/core/skbuff.c:137
 __alloc_skb+0xcf/0x500 net/core/skbuff.c:205

other info that might help us debug this:

 alloc_skb include/linux/skbuff.h:980 [inline]
 kobject_uevent_env+0x781/0xc23 lib/kobject_uevent.c:479
 kobject_uevent+0x20/0x26 lib/kobject_uevent.c:553

rcu_scheduler_active = 2, debug_locks = 1
 loop_set_fd drivers/block/loop.c:938 [inline]
 lo_ioctl+0x11e7/0x1ce0 drivers/block/loop.c:1407
 __blkdev_driver_ioctl block/ioctl.c:297 [inline]
 blkdev_ioctl+0x96b/0x1860 block/ioctl.c:594
2 locks held by syz-executor.1/12067:
 block_ioctl+0xde/0x120 fs/block_dev.c:1881
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684
 #0: 
 (
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
cb_lock
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459697
){++++}
RSP: 002b:00007f790fe68a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000459697
RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000004
R13: 00000000004c89bb R14: 00000000004df800 R15: 0000000000000003
, at: [<ffffffff84f4e92a>] genl_rcv+0x1a/0x40 net/netlink/genetlink.c:635
 #1: 
hfsplus: session requires an argument
hfsplus: unable to parse mount options
QAT: Invalid ioctl
QAT: Invalid ioctl
 (genl_mutex){+.+.}, at: [<ffffffff84f4f699>] genl_lock net/netlink/genetlink.c:33 [inline]
 (genl_mutex){+.+.}, at: [<ffffffff84f4f699>] genl_rcv_msg+0x119/0x150 net/netlink/genetlink.c:623

stack backtrace:
CPU: 0 PID: 12067 Comm: syz-executor.1 Not tainted 4.14.137 #33
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+0x138/0x19c lib/dump_stack.c:53
 lockdep_rcu_suspicious+0x153/0x15d kernel/locking/lockdep.c:4662
 tipc_bearer_find+0x20a/0x300 net/tipc/bearer.c:177
 tipc_nl_compat_link_set+0x433/0xbf0 net/tipc/netlink_compat.c:794
 __tipc_nl_compat_doit net/tipc/netlink_compat.c:304 [inline]
 tipc_nl_compat_doit+0x16b/0x510 net/tipc/netlink_compat.c:351
 tipc_nl_compat_handle net/tipc/netlink_compat.c:1195 [inline]
 tipc_nl_compat_recv+0x9b8/0xaf0 net/tipc/netlink_compat.c:1277
 genl_family_rcv_msg+0x614/0xc30 net/netlink/genetlink.c:600
 genl_rcv_msg+0xb4/0x150 net/netlink/genetlink.c:625
 netlink_rcv_skb+0x14f/0x3c0 net/netlink/af_netlink.c:2432
 genl_rcv+0x29/0x40 net/netlink/genetlink.c:636
 netlink_unicast_kernel net/netlink/af_netlink.c:1286 [inline]
 netlink_unicast+0x45d/0x640 net/netlink/af_netlink.c:1312
 netlink_sendmsg+0x7c4/0xc60 net/netlink/af_netlink.c:1877
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xce/0x110 net/socket.c:656
 ___sys_sendmsg+0x70a/0x840 net/socket.c:2062
 __sys_sendmsg+0xb9/0x140 net/socket.c:2096
 SYSC_sendmsg net/socket.c:2107 [inline]
 SyS_sendmsg+0x2d/0x50 net/socket.c:2103
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459829
RSP: 002b:00007ff17bccfc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459829
RDX: 0000000000000000 RSI: 0000000020004900 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff17bcd06d4
R13: 00000000004ce858 R14: 00000000004dcab8 R15: 00000000ffffffff
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 12115 Comm: syz-executor.4 Not tainted 4.14.137 #33
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+0x138/0x19c lib/dump_stack.c:53
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_failslab+0xdb/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+0x280/0x770 mm/slab.c:3659
 __do_kmalloc_node mm/slab.c:3681 [inline]
 __kmalloc_node_track_caller+0x3d/0x80 mm/slab.c:3696
 __kmalloc_reserve.isra.0+0x40/0xe0 net/core/skbuff.c:137
 __alloc_skb+0xcf/0x500 net/core/skbuff.c:205
 alloc_skb include/linux/skbuff.h:980 [inline]
 kobject_uevent_env+0x781/0xc23 lib/kobject_uevent.c:479
 kobject_uevent+0x20/0x26 lib/kobject_uevent.c:553
 loop_set_fd drivers/block/loop.c:938 [inline]
 lo_ioctl+0x11e7/0x1ce0 drivers/block/loop.c:1407
 __blkdev_driver_ioctl block/ioctl.c:297 [inline]
 blkdev_ioctl+0x96b/0x1860 block/ioctl.c:594
 block_ioctl+0xde/0x120 fs/block_dev.c:1881
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459697
RSP: 002b:00007f790fe68a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000459697
RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000004
R13: 00000000004c89bb R14: 00000000004df800 R15: 0000000000000003
hfsplus: session requires an argument
hfsplus: unable to parse mount options
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
net_ratelimit: 22 callbacks suppressed
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
CPU: 1 PID: 12150 Comm: syz-executor.4 Not tainted 4.14.137 #33
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+0x138/0x19c lib/dump_stack.c:53
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_failslab+0xdb/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+0x280/0x770 mm/slab.c:3659
 __do_kmalloc_node mm/slab.c:3681 [inline]
 __kmalloc_node_track_caller+0x3d/0x80 mm/slab.c:3696
 __kmalloc_reserve.isra.0+0x40/0xe0 net/core/skbuff.c:137
 __alloc_skb+0xcf/0x500 net/core/skbuff.c:205
 alloc_skb include/linux/skbuff.h:980 [inline]
 kobject_uevent_env+0x781/0xc23 lib/kobject_uevent.c:479
 kobject_uevent+0x20/0x26 lib/kobject_uevent.c:553
 loop_set_fd drivers/block/loop.c:938 [inline]
 lo_ioctl+0x11e7/0x1ce0 drivers/block/loop.c:1407
 __blkdev_driver_ioctl block/ioctl.c:297 [inline]
 blkdev_ioctl+0x96b/0x1860 block/ioctl.c:594
 block_ioctl+0xde/0x120 fs/block_dev.c:1881
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459697
RSP: 002b:00007f790fe68a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000459697
RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000004
R13: 00000000004c89bb R14: 00000000004df800 R15: 0000000000000003
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
hfsplus: session requires an argument
hfsplus: unable to parse mount options
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 12190 Comm: syz-executor.4 Not tainted 4.14.137 #33
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+0x138/0x19c lib/dump_stack.c:53
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_failslab+0xdb/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+0x287/0x780 mm/slab.c:3640
 __alloc_skb+0x9c/0x500 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:980 [inline]
 kobject_uevent_env+0x781/0xc23 lib/kobject_uevent.c:479
 kobject_uevent+0x20/0x26 lib/kobject_uevent.c:553
 loop_set_fd drivers/block/loop.c:938 [inline]
 lo_ioctl+0x11e7/0x1ce0 drivers/block/loop.c:1407
 __blkdev_driver_ioctl block/ioctl.c:297 [inline]
 blkdev_ioctl+0x96b/0x1860 block/ioctl.c:594
 block_ioctl+0xde/0x120 fs/block_dev.c:1881
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459697
RSP: 002b:00007f790fe68a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000459697
RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000004
R13: 00000000004c89bb R14: 00000000004df800 R15: 0000000000000003
hfsplus: session requires an argument
hfsplus: unable to parse mount options
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 12223 Comm: syz-executor.4 Not tainted 4.14.137 #33
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+0x138/0x19c lib/dump_stack.c:53
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_failslab+0xdb/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+0x287/0x780 mm/slab.c:3640
 __alloc_skb+0x9c/0x500 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:980 [inline]
 kobject_uevent_env+0x781/0xc23 lib/kobject_uevent.c:479
 kobject_uevent+0x20/0x26 lib/kobject_uevent.c:553
 loop_set_fd drivers/block/loop.c:938 [inline]
 lo_ioctl+0x11e7/0x1ce0 drivers/block/loop.c:1407
 __blkdev_driver_ioctl block/ioctl.c:297 [inline]
 blkdev_ioctl+0x96b/0x1860 block/ioctl.c:594
 block_ioctl+0xde/0x120 fs/block_dev.c:1881
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459697
RSP: 002b:00007f790fe68a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000459697
RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000004
R13: 00000000004c89bb R14: 00000000004df800 R15: 0000000000000003
hfsplus: session requires an argument
hfsplus: unable to parse mount options
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 12263 Comm: syz-executor.4 Not tainted 4.14.137 #33
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+0x138/0x19c lib/dump_stack.c:53
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_failslab+0xdb/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+0x280/0x770 mm/slab.c:3659
 __do_kmalloc_node mm/slab.c:3681 [inline]
 __kmalloc_node_track_caller+0x3d/0x80 mm/slab.c:3696
 __kmalloc_reserve.isra.0+0x40/0xe0 net/core/skbuff.c:137
 __alloc_skb+0xcf/0x500 net/core/skbuff.c:205
 alloc_skb include/linux/skbuff.h:980 [inline]
 kobject_uevent_env+0x781/0xc23 lib/kobject_uevent.c:479
 kobject_uevent+0x20/0x26 lib/kobject_uevent.c:553
 loop_set_fd drivers/block/loop.c:938 [inline]
 lo_ioctl+0x11e7/0x1ce0 drivers/block/loop.c:1407
 __blkdev_driver_ioctl block/ioctl.c:297 [inline]
 blkdev_ioctl+0x96b/0x1860 block/ioctl.c:594
 block_ioctl+0xde/0x120 fs/block_dev.c:1881
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459697
RSP: 002b:00007f790fe68a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000459697
RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000004
R13: 00000000004c89bb R14: 00000000004df800 R15: 0000000000000003
hfsplus: session requires an argument
hfsplus: unable to parse mount options
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 12288 Comm: syz-executor.4 Not tainted 4.14.137 #33
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+0x138/0x19c lib/dump_stack.c:53
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_failslab+0xdb/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+0x287/0x780 mm/slab.c:3640
 __alloc_skb+0x9c/0x500 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:980 [inline]
 kobject_uevent_env+0x781/0xc23 lib/kobject_uevent.c:479
 kobject_uevent+0x20/0x26 lib/kobject_uevent.c:553
 loop_set_fd drivers/block/loop.c:938 [inline]
 lo_ioctl+0x11e7/0x1ce0 drivers/block/loop.c:1407
 __blkdev_driver_ioctl block/ioctl.c:297 [inline]
 blkdev_ioctl+0x96b/0x1860 block/ioctl.c:594
 block_ioctl+0xde/0x120 fs/block_dev.c:1881
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684
ptrace attach of "/root/syz-executor.0"[12299] was attempted by "/root/syz-executor.0"[12300]
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459697
RSP: 002b:00007f790fe68a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000459697
RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005
ptrace attach of "/root/syz-executor.0"[12305] was attempted by "/root/syz-executor.0"[12306]
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000004
R13: 00000000004c89bb R14: 00000000004df800 R15: 0000000000000003
hfsplus: session requires an argument
hfsplus: unable to parse mount options
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 12338 Comm: syz-executor.4 Not tainted 4.14.137 #33
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+0x138/0x19c lib/dump_stack.c:53
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_failslab+0xdb/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+0x287/0x780 mm/slab.c:3640
 __alloc_skb+0x9c/0x500 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:980 [inline]
 kobject_uevent_env+0x781/0xc23 lib/kobject_uevent.c:479
 kobject_uevent+0x20/0x26 lib/kobject_uevent.c:553
 loop_set_fd drivers/block/loop.c:938 [inline]
 lo_ioctl+0x11e7/0x1ce0 drivers/block/loop.c:1407
 __blkdev_driver_ioctl block/ioctl.c:297 [inline]
 blkdev_ioctl+0x96b/0x1860 block/ioctl.c:594
 block_ioctl+0xde/0x120 fs/block_dev.c:1881
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459697
RSP: 002b:00007f790fe68a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000459697
RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000004
R13: 00000000004c89bb R14: 00000000004df800 R15: 0000000000000003
hfsplus: session requires an argument
hfsplus: unable to parse mount options
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 12368 Comm: syz-executor.4 Not tainted 4.14.137 #33
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+0x138/0x19c lib/dump_stack.c:53
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_failslab+0xdb/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+0x280/0x770 mm/slab.c:3659
 __do_kmalloc_node mm/slab.c:3681 [inline]
 __kmalloc_node_track_caller+0x3d/0x80 mm/slab.c:3696
 __kmalloc_reserve.isra.0+0x40/0xe0 net/core/skbuff.c:137
 __alloc_skb+0xcf/0x500 net/core/skbuff.c:205
 alloc_skb include/linux/skbuff.h:980 [inline]
 kobject_uevent_env+0x781/0xc23 lib/kobject_uevent.c:479
 kobject_uevent+0x20/0x26 lib/kobject_uevent.c:553
 loop_set_fd drivers/block/loop.c:938 [inline]
 lo_ioctl+0x11e7/0x1ce0 drivers/block/loop.c:1407
 __blkdev_driver_ioctl block/ioctl.c:297 [inline]
 blkdev_ioctl+0x96b/0x1860 block/ioctl.c:594
 block_ioctl+0xde/0x120 fs/block_dev.c:1881
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459697
RSP: 002b:00007f790fe68a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000459697
RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000004
R13: 00000000004c89bb R14: 00000000004df800 R15: 0000000000000003
hfsplus: session requires an argument
hfsplus: unable to parse mount options
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 12421 Comm: syz-executor.4 Not tainted 4.14.137 #33
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+0x138/0x19c lib/dump_stack.c:53
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_failslab+0xdb/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+0x287/0x780 mm/slab.c:3640
 __alloc_skb+0x9c/0x500 net/core/skbuff.c:193
 alloc_skb include/linux/skbuff.h:980 [inline]
 kobject_uevent_env+0x781/0xc23 lib/kobject_uevent.c:479
 kobject_uevent+0x20/0x26 lib/kobject_uevent.c:553
 loop_set_fd drivers/block/loop.c:938 [inline]
 lo_ioctl+0x11e7/0x1ce0 drivers/block/loop.c:1407
 __blkdev_driver_ioctl block/ioctl.c:297 [inline]
 blkdev_ioctl+0x96b/0x1860 block/ioctl.c:594
 block_ioctl+0xde/0x120 fs/block_dev.c:1881
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x459697
RSP: 002b:00007f790fe68a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000459697
RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000004
R13: 00000000004c89bb R14: 00000000004df800 R15: 0000000000000003
hfsplus: session requires an argument
hfsplus: unable to parse mount options
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 1 PID: 12458 Comm: syz-executor.4 Not tainted 4.14.137 #33
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+0x138/0x19c lib/dump_stack.c:53
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_failslab+0xdb/0x130 mm/failslab.c:32
 slab_pre_alloc_hook mm/slab.h:421 [inline]
 slab_alloc mm/slab.c:3376 [inline]
 kmem_cache_alloc+0x2d7/0x780 mm/slab.c:3550
 getname_flags fs/namei.c:138 [inline]
 getname_flags+0xcb/0x580 fs/namei.c:128
 getname fs/namei.c:209 [inline]
 user_path_create fs/namei.c:3729 [inline]
 SYSC_mkdirat fs/namei.c:3861 [inline]
 SyS_mkdirat fs/namei.c:3853 [inline]
 SYSC_mkdir fs/namei.c:3880 [inline]
 SyS_mkdir+0x7e/0x200 fs/namei.c:3878
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x458c47
RSP: 002b:00007f790fe68a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000458c47
RDX: 0000000000000004 RSI: 00000000000001ff RDI: 0000000020000080
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000004
R13: 00000000004c89bb R14: 00000000004df800 R15: 0000000000000003
net_ratelimit: 18 callbacks suppressed
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 0
CPU: 0 PID: 12483 Comm: syz-executor.4 Not tainted 4.14.137 #33
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+0x138/0x19c lib/dump_stack.c:53
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_failslab+0xdb/0x130 mm/failslab.c:32
 slab_pre_alloc_hook mm/slab.h:421 [inline]
 slab_alloc mm/slab.c:3376 [inline]
 kmem_cache_alloc+0x2d7/0x780 mm/slab.c:3550
 getname_flags fs/namei.c:138 [inline]
 getname_flags+0xcb/0x580 fs/namei.c:128
 getname fs/namei.c:209 [inline]
 user_path_create fs/namei.c:3729 [inline]
 SYSC_mkdirat fs/namei.c:3861 [inline]
 SyS_mkdirat fs/namei.c:3853 [inline]
 SYSC_mkdir fs/namei.c:3880 [inline]
 SyS_mkdir+0x7e/0x200 fs/namei.c:3878
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x458c47
RSP: 002b:00007f790fe68a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000458c47
RDX: 0000000000000004 RSI: 00000000000001ff RDI: 0000000020000080
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000004
R13: 00000000004c89bb R14: 00000000004df800 R15: 0000000000000003
FAULT_INJECTION: forcing a failure.
name fail_page_alloc, interval 1, probability 0, space 0, times 1
CPU: 0 PID: 12506 Comm: syz-executor.4 Not tainted 4.14.137 #33
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+0x138/0x19c lib/dump_stack.c:53
 fail_dump lib/fault-inject.c:51 [inline]
 should_fail.cold+0x10f/0x159 lib/fault-inject.c:149
 should_fail_alloc_page mm/page_alloc.c:2891 [inline]
 prepare_alloc_pages mm/page_alloc.c:4124 [inline]
 __alloc_pages_nodemask+0x1d6/0x7a0 mm/page_alloc.c:4172
 __alloc_pages include/linux/gfp.h:461 [inline]
 __alloc_pages_node include/linux/gfp.h:474 [inline]
 kmem_getpages mm/slab.c:1419 [inline]
 cache_grow_begin+0x80/0x400 mm/slab.c:2676
 cache_alloc_refill mm/slab.c:3043 [inline]
 ____cache_alloc mm/slab.c:3125 [inline]
 ____cache_alloc mm/slab.c:3108 [inline]
 __do_cache_alloc mm/slab.c:3347 [inline]
 slab_alloc mm/slab.c:3382 [inline]
 kmem_cache_alloc+0x6a6/0x780 mm/slab.c:3550
 getname_flags fs/namei.c:138 [inline]
 getname_flags+0xcb/0x580 fs/namei.c:128
 getname fs/namei.c:209 [inline]
 user_path_create fs/namei.c:3729 [inline]
 SYSC_mkdirat fs/namei.c:3861 [inline]
 SyS_mkdirat fs/namei.c:3853 [inline]
 SYSC_mkdir fs/namei.c:3880 [inline]
 SyS_mkdir+0x7e/0x200 fs/namei.c:3878
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x458c47
RSP: 002b:00007f790fe68a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 0000000000000010 RCX: 0000000000458c47
RDX: 0000000000000004 RSI: 00000000000001ff RDI: 0000000020000080
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000000a
R10: 0000000000000075 R11: 0000000000000246 R12: 0000000000000004
R13: 00000000004c89bb R14: 00000000004df800 R15: 0000000000000003

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/08/07 20:56 linux-4.14.y b19ffe6e7205 e6ebef88 .config console log report ci2-linux-4-14
2019/07/23 17:50 linux-4.14.y ff33472c282e bb071d58 .config console log report ci2-linux-4-14
2019/06/28 13:51 linux-4.14.y f4cc0ed9b2c7 7509bf36 .config console log report ci2-linux-4-14
* Struck through repros no longer work on HEAD.