audit: type=1400 audit(2000000162.079:33247): avc: denied { map } for pid=18303 comm="blkid" path="/lib/x86_64-linux-gnu/ld-2.13.so" dev="sda1" ino=2668 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 ============================= WARNING: suspicious RCU usage 4.14.101+ #14 Not tainted ----------------------------- net/ipv6/ip6_fib.c:1590 suspicious rcu_dereference_protected() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 5 locks held by syz-executor.3/1849: #0: (rcu_read_lock){....}, at: [] INIT_LIST_HEAD include/linux/list.h:29 [inline] #0: (rcu_read_lock){....}, at: [] avc_compute_av+0xaa/0x550 security/selinux/avc.c:971 #1: (((&net->ipv6.ip6_fib_timer))){+.-.}, at: [] lockdep_copy_map include/linux/lockdep.h:174 [inline] #1: (((&net->ipv6.ip6_fib_timer))){+.-.}, at: [] call_timer_fn+0xc6/0x680 kernel/time/timer.c:1269 #2: (&(&net->ipv6.fib6_gc_lock)->rlock){+.-.}, at: [] spin_lock_bh include/linux/spinlock.h:322 [inline] #2: (&(&net->ipv6.fib6_gc_lock)->rlock){+.-.}, at: [] fib6_run_gc+0x93/0x2a0 net/ipv6/ip6_fib.c:1938 #3: (rcu_read_lock){....}, at: [] __fib6_clean_all+0x0/0x230 net/ipv6/ip6_fib.c:1823 #4: (&tb->tb6_lock){++--}, at: [] __fib6_clean_all+0xde/0x230 net/ipv6/ip6_fib.c:1837 stack backtrace: CPU: 0 PID: 1849 Comm: syz-executor.3 Not tainted 4.14.101+ #14 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xb9/0x10e lib/dump_stack.c:53 fib6_del+0x8c2/0xbe0 net/ipv6/ip6_fib.c:1590 fib6_clean_node+0x270/0x440 net/ipv6/ip6_fib.c:1777 fib6_walk_continue+0x3a5/0x5f0 net/ipv6/ip6_fib.c:1703 fib6_walk+0x8d/0xe0 net/ipv6/ip6_fib.c:1748 fib6_clean_tree+0xd4/0x110 net/ipv6/ip6_fib.c:1822 __fib6_clean_all+0xf5/0x230 net/ipv6/ip6_fib.c:1838 fib6_clean_all net/ipv6/ip6_fib.c:1849 [inline] fib6_run_gc+0x104/0x2a0 net/ipv6/ip6_fib.c:1947 call_timer_fn+0x14a/0x680 kernel/time/timer.c:1279 expire_timers+0x216/0x4b0 kernel/time/timer.c:1318 __run_timers kernel/time/timer.c:1634 [inline] run_timer_softirq+0x1eb/0x5d0 kernel/time/timer.c:1647 __do_softirq+0x234/0x9ca kernel/softirq.c:288 invoke_softirq kernel/softirq.c:368 [inline] irq_exit+0x114/0x150 kernel/softirq.c:409 audit: type=1400 audit(2000000162.089:33248): avc: denied { map } for pid=18303 comm="blkid" path="/lib/x86_64-linux-gnu/ld-2.13.so" dev="sda1" ino=2668 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 exiting_irq arch/x86/include/asm/apic.h:648 [inline] smp_apic_timer_interrupt+0x185/0x620 arch/x86/kernel/apic/apic.c:1064 apic_timer_interrupt+0x84/0x90 arch/x86/entry/entry_64.S:787 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:778 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x59/0x70 kernel/locking/spinlock.c:192 RSP: 0018:ffff8881a4a17b20 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff10 RAX: 0000000000000007 RBX: 0000000000000206 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8881d15b4eb0 RDI: 0000000000000206 RBP: ffffffff87635ac8 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000206 R13: 000000000000013b R14: 0000000000000001 R15: dffffc0000000000 spin_unlock_irqrestore include/linux/spinlock.h:372 [inline] avc_reclaim_node security/selinux/avc.c:539 [inline] avc_alloc_node security/selinux/avc.c:557 [inline] avc_alloc_node+0x28d/0x3c0 security/selinux/avc.c:545 avc_insert security/selinux/avc.c:668 [inline] avc_compute_av+0x17c/0x550 security/selinux/avc.c:974 audit: type=1400 audit(2000000162.089:33249): avc: denied { map } for pid=18308 comm="modprobe" path="/bin/kmod" dev="sda1" ino=1440 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(2000000162.099:33250): avc: denied { map } for pid=18308 comm="modprobe" path="/bin/kmod" dev="sda1" ino=1440 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 input: syz1 as /devices/virtual/input/input21 FAT-fs (loop4): codepage cp437 not found input: syz1 as /devices/virtual/input/input22 EXT4-fs (loop3): VFS: Can't find ext4 filesystem EXT4-fs (loop3): VFS: Can't find ext4 filesystem keychord: unsupported version 42163 keychord: Insufficient bytes present for keycount 9 kauditd_printk_skb: 259 callbacks suppressed audit: type=1400 audit(2000000166.989:33480): avc: denied { map } for pid=18429 comm="modprobe" path="/lib/x86_64-linux-gnu/libkmod.so.2.1.3" dev="sda1" ino=2811 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 device lo left promiscuous mode keychord: unsupported version 42163 keychord: Insufficient bytes present for keycount 9 audit: type=1400 audit(2000000166.989:33481): avc: denied { map } for pid=18427 comm="blkid" path="/lib/x86_64-linux-gnu/libblkid.so.1.1.0" dev="sda1" ino=2825 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 ip6_tunnel: ip6tnl1 xmit: Local address not yet configured! audit: type=1400 audit(2000000166.989:33482): avc: denied { map } for pid=18427 comm="blkid" path="/lib/x86_64-linux-gnu/libblkid.so.1.1.0" dev="sda1" ino=2825 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. audit: type=1400 audit(2000000167.049:33483): avc: denied { map } for pid=18429 comm="modprobe" path="/lib/x86_64-linux-gnu/libc-2.13.so" dev="sda1" ino=2784 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 ip6_tunnel: ip6tnl1 xmit: Local address not yet configured! netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. ip6_tunnel: ip6tnl1 xmit: Local address not yet configured! audit: type=1400 audit(2000000167.059:33484): avc: denied { map } for pid=18429 comm="modprobe" path="/lib/x86_64-linux-gnu/libc-2.13.so" dev="sda1" ino=2784 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(2000000167.059:33485): avc: denied { map } for pid=18438 comm="blkid" path="/sbin/blkid" dev="sda1" ino=16128 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. audit: type=1400 audit(2000000167.069:33486): avc: denied { map } for pid=18427 comm="blkid" path="/lib/x86_64-linux-gnu/libc-2.13.so" dev="sda1" ino=2784 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(2000000167.069:33487): avc: denied { map } for pid=18438 comm="blkid" path="/sbin/blkid" dev="sda1" ino=16128 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(2000000167.079:33488): avc: denied { map } for pid=18427 comm="blkid" path="/lib/x86_64-linux-gnu/libc-2.13.so" dev="sda1" ino=2784 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(2000000167.089:33489): avc: denied { map } for pid=18438 comm="blkid" path="/lib/x86_64-linux-gnu/ld-2.13.so" dev="sda1" ino=2668 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 ip6_tunnel: ip6tnl1 xmit: Local address not yet configured! netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. ip6_tunnel: ip6tnl1 xmit: Local address not yet configured! selinux_nlmsg_perm: 6 callbacks suppressed SELinux: unrecognized netlink message: protocol=0 nlmsg_type=65535 sclass=netlink_route_socket pig=18510 comm=syz-executor.1 ip6_tunnel: ip6tnl1 xmit: Local address not yet configured! netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=65535 sclass=netlink_route_socket pig=18513 comm=syz-executor.1 SELinux: policydb magic number 0xe7cff8c does not match expected magic number 0xf97cff8c SELinux: failed to load policy ip6_tunnel: ip6tnl1 xmit: Local address not yet configured! netlink: 8 bytes leftover after parsing attributes in process `syz-executor.0'. ip6_tunnel: ip6tnl1 xmit: Local address not yet configured! kauditd_printk_skb: 257 callbacks suppressed audit: type=1400 audit(2000000172.009:33747): avc: denied { map } for pid=18553 comm="modprobe" path="/lib/x86_64-linux-gnu/libkmod.so.2.1.3" dev="sda1" ino=2811 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(2000000172.009:33748): avc: denied { map } for pid=18555 comm="modprobe" path="/lib/x86_64-linux-gnu/libkmod.so.2.1.3" dev="sda1" ino=2811 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 ip6_tunnel: ip6tnl1 xmit: Local address not yet configured! audit: type=1400 audit(2000000172.019:33749): avc: denied { map } for pid=18555 comm="modprobe" path="/lib/x86_64-linux-gnu/libkmod.so.2.1.3" dev="sda1" ino=2811 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 ip6_tunnel: ip6tnl1 xmit: Local address not yet configured! audit: type=1400 audit(2000000172.049:33750): avc: denied { map } for pid=18554 comm="modprobe" path="/lib/x86_64-linux-gnu/libkmod.so.2.1.3" dev="sda1" ino=2811 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(2000000172.059:33751): avc: denied { map } for pid=18554 comm="modprobe" path="/lib/x86_64-linux-gnu/libc-2.13.so" dev="sda1" ino=2784 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(2000000172.059:33752): avc: denied { map } for pid=18554 comm="modprobe" path="/lib/x86_64-linux-gnu/libc-2.13.so" dev="sda1" ino=2784 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1