encrypted_key: key trusted:em1 not found netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. ============================= WARNING: suspicious RCU usage 4.14.281-syzkaller #0 Not tainted ip_tables: iptables: counters copy to user failed while replacing table ----------------------------- net/netfilter/nf_queue.c:244 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 5 locks held by syz-executor.4/8006: #0: (&dup_mmap_sem){.+.+}, at: [] dup_mmap kernel/fork.c:601 [inline] #0: (&dup_mmap_sem){.+.+}, at: [] dup_mm kernel/fork.c:1200 [inline] #0: (&dup_mmap_sem){.+.+}, at: [] copy_mm kernel/fork.c:1255 [inline] #0: (&dup_mmap_sem){.+.+}, at: [] copy_process.part.0+0x4392/0x71c0 kernel/fork.c:1791 #1: (&mm->mmap_sem){++++}, at: [] dup_mmap kernel/fork.c:602 [inline] #1: (&mm->mmap_sem){++++}, at: [] dup_mm kernel/fork.c:1200 [inline] #1: (&mm->mmap_sem){++++}, at: [] copy_mm kernel/fork.c:1255 [inline] #1: (&mm->mmap_sem){++++}, at: [] copy_process.part.0+0x43ae/0x71c0 kernel/fork.c:1791 #2: (&mm->mmap_sem/1){+.+.}, at: [] dup_mmap kernel/fork.c:611 [inline] #2: (&mm->mmap_sem/1){+.+.}, at: [] dup_mm kernel/fork.c:1200 [inline] #2: (&mm->mmap_sem/1){+.+.}, at: [] copy_mm kernel/fork.c:1255 [inline] #2: (&mm->mmap_sem/1){+.+.}, at: [] copy_process.part.0+0x43e8/0x71c0 kernel/fork.c:1791 #3: (rcu_callback){....}, at: [] __rcu_reclaim kernel/rcu/rcu.h:185 [inline] #3: (rcu_callback){....}, at: [] rcu_do_batch kernel/rcu/tree.c:2699 [inline] #3: (rcu_callback){....}, at: [] invoke_rcu_callbacks kernel/rcu/tree.c:2962 [inline] #3: (rcu_callback){....}, at: [] __rcu_process_callbacks kernel/rcu/tree.c:2929 [inline] #3: (rcu_callback){....}, at: [] rcu_process_callbacks+0x84e/0x1180 kernel/rcu/tree.c:2946 #4: (&(&inst->lock)->rlock){+.-.}, at: [] spin_lock_bh include/linux/spinlock.h:322 [inline] #4: (&(&inst->lock)->rlock){+.-.}, at: [] nfqnl_flush+0x2f/0x2a0 net/netfilter/nfnetlink_queue.c:232 stack backtrace: CPU: 1 PID: 8006 Comm: syz-executor.4 Not tainted 4.14.281-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 nf_reinject+0x56e/0x700 net/netfilter/nf_queue.c:244 nfqnl_flush+0x1ab/0x2a0 net/netfilter/nfnetlink_queue.c:237 instance_destroy_rcu+0x19/0x30 net/netfilter/nfnetlink_queue.c:171 __rcu_reclaim kernel/rcu/rcu.h:195 [inline] rcu_do_batch kernel/rcu/tree.c:2699 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2962 [inline] __rcu_process_callbacks kernel/rcu/tree.c:2929 [inline] rcu_process_callbacks+0x780/0x1180 kernel/rcu/tree.c:2946 __do_softirq+0x24d/0x9ff kernel/softirq.c:288 invoke_softirq kernel/softirq.c:368 [inline] irq_exit+0x193/0x240 kernel/softirq.c:409 exiting_irq arch/x86/include/asm/apic.h:638 [inline] smp_apic_timer_interrupt+0x141/0x5e0 arch/x86/kernel/apic/apic.c:1106 apic_timer_interrupt+0x93/0xa0 arch/x86/entry/entry_64.S:793 RIP: 0010:memset_erms+0xb/0x10 arch/x86/lib/memset_64.S:67 RSP: 0018:ffff8880979b7878 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 RAX: ffffed1012f36f00 RBX: ffff8880979b7998 RCX: 0000000000000000 RDX: 0000000000000058 RSI: 0000000000000000 RDI: ffff8880979b7980 RBP: 1ffff11012f36f14 R08: 0000000000000001 R09: ffff8880979b7928 R10: ffff8880979b797f R11: 0000000000000000 R12: ffff888097fc0040 R13: 0000000000000000 R14: dffffc0000000000 R15: ffff8880979b7928 memset include/linux/string.h:361 [inline] __unwind_start+0x66/0x930 arch/x86/kernel/unwind_orc.c:511 unwind_start arch/x86/include/asm/unwind.h:60 [inline] __save_stack_trace+0x63/0x160 arch/x86/kernel/stacktrace.c:43 save_stack mm/kasan/kasan.c:447 [inline] set_track mm/kasan/kasan.c:459 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:551 slab_post_alloc_hook mm/slab.h:442 [inline] slab_alloc mm/slab.c:3390 [inline] kmem_cache_alloc+0x111/0x3c0 mm/slab.c:3550 dup_mmap kernel/fork.c:647 [inline] dup_mm kernel/fork.c:1200 [inline] copy_mm kernel/fork.c:1255 [inline] copy_process.part.0+0x4ad1/0x71c0 kernel/fork.c:1791 copy_process kernel/fork.c:1606 [inline] _do_fork+0x184/0xc80 kernel/fork.c:2092 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f61787336fb RSP: 002b:00007fff3f7eae10 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f61787336fb RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000555555787400 R10: 00005555557876d0 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007fff3f7eaef0 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. ip_tables: iptables: counters copy to user failed while replacing table netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. ip_tables: iptables: counters copy to user failed while replacing table ip_tables: iptables: counters copy to user failed while replacing table netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. ip_tables: iptables: counters copy to user failed while replacing table ip_tables: iptables: counters copy to user failed while replacing table overlayfs: unrecognized mount option "redirect_dir=./file1" or missing value new mount options do not match the existing superblock, will be ignored ====================================================== WARNING: the mand mount option is being deprecated and will be removed in v5.15! ====================================================== EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue overlayfs: unrecognized mount option "xino=auto" or missing value overlayfs: unrecognized mount option "redirect_dir=./file1" or missing value new mount options do not match the existing superblock, will be ignored overlayfs: unrecognized mount option "xino=auto" or missing value overlayfs: unrecognized mount option "redirect_dir=./file1" or missing value EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue new mount options do not match the existing superblock, will be ignored overlayfs: unrecognized mount option "redirect_dir=./file1" or missing value overlayfs: unrecognized mount option "xino=auto" or missing value new mount options do not match the existing superblock, will be ignored overlayfs: unrecognized mount option "xino=auto" or missing value overlayfs: unrecognized mount option "redirect_dir=./file1" or missing value new mount options do not match the existing superblock, will be ignored overlayfs: unrecognized mount option "redirect_dir=./file1" or missing value overlayfs: unrecognized mount option "xino=auto" or missing value new mount options do not match the existing superblock, will be ignored overlayfs: unrecognized mount option "xino=auto" or missing value overlayfs: unrecognized mount option "redirect_dir=./file1" or missing value new mount options do not match the existing superblock, will be ignored EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue overlayfs: unrecognized mount option "xino=auto" or missing value IPv6: ADDRCONF(NETDEV_CHANGE): lo: link becomes ready syz-executor.5 (9890) used greatest stack depth: 24464 bytes left EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue print_req_error: I/O error, dev loop7, sector 0 Buffer I/O error on dev loop7, logical block 0, async page read print_req_error: I/O error, dev loop7, sector 0 Buffer I/O error on dev loop7, logical block 0, async page read print_req_error: I/O error, dev loop7, sector 0 Buffer I/O error on dev loop7, logical block 0, async page read print_req_error: I/O error, dev loop7, sector 0 Buffer I/O error on dev loop7, logical block 0, async page read print_req_error: I/O error, dev loop7, sector 0 Buffer I/O error on dev loop7, logical block 0, async page read print_req_error: I/O error, dev loop7, sector 0 Buffer I/O error on dev loop7, logical block 0, async page read print_req_error: I/O error, dev loop7, sector 0 Buffer I/O error on dev loop7, logical block 0, async page read print_req_error: I/O error, dev loop7, sector 0 Buffer I/O error on dev loop7, logical block 0, async page read ldm_validate_partition_table(): Disk read failed. print_req_error: I/O error, dev loop7, sector 0 Buffer I/O error on dev loop7, logical block 0, async page read print_req_error: I/O error, dev loop7, sector 0 Buffer I/O error on dev loop7, logical block 0, async page read Dev loop7: unable to read RDB block 0 loop7: unable to read partition table loop_reread_partitions: partition scan of loop7 (@ܸ%2xZ?h2~*2l:QGJR BHH) failed (rc=-5) netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. loop_set_status: loop7 () has still dirty pages (nrpages=1) loop_set_status: loop7 () has still dirty pages (nrpages=2) loop_set_status: loop7 () has still dirty pages (nrpages=1) usb usb9: usbfs: interface 0 claimed by hub while 'syz-executor.3' sets config #2048 syz-executor.2 (10056) used greatest stack depth: 23648 bytes left vhci_hcd: default hub control req: 010b v0000 i0000 l0 vhci_hcd: default hub control req: 010b v0000 i0000 l0 vhci_hcd: default hub control req: 010b v0000 i0000 l0 vhci_hcd: default hub control req: 010b v0000 i0000 l0 vhci_hcd: default hub control req: 010b v0000 i0000 l0 vhci_hcd: default hub control req: 010b v0000 i0000 l0 vhci_hcd: default hub control req: 010b v0000 i0000 l0 vhci_hcd: default hub control req: 010b v0000 i0000 l0 usb usb9: usbfs: interface 0 claimed by usbfs while 'syz-executor.3' sets config #2048 vhci_hcd: default hub control req: 010b v0000 i0000 l0 vhci_hcd: default hub control req: 010b v0000 i0000 l0