[ 52.244463][ T26] audit: type=1800 audit(1582609252.871:25): pid=8862 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 52.263512][ T26] audit: type=1800 audit(1582609252.871:26): pid=8862 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 52.300444][ T26] audit: type=1800 audit(1582609252.881:27): pid=8862 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [ 52.830623][ T8926] sshd (8926) used greatest stack depth: 23984 bytes left [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.47' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 62.944348][ T9019] IPVS: ftp: loaded support on port[0] = 21 [ 62.977994][ T9019] BUG: unable to handle page fault for address: ffffed1019043287 [ 62.985737][ T9019] #PF: supervisor read access in kernel mode [ 62.991691][ T9019] #PF: error_code(0x0000) - not-present page [ 62.997682][ T9019] PGD 21ffef067 P4D 21ffef067 PUD 12fff6067 PMD 0 [ 63.004179][ T9019] Oops: 0000 [#1] PREEMPT SMP KASAN [ 63.009400][ T9019] CPU: 1 PID: 9019 Comm: syz-executor064 Not tainted 5.6.0-rc3-syzkaller #0 [ 63.018047][ T9019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.028093][ T9019] RIP: 0010:ethnl_update_bitset32+0x1afe/0x2380 [ 63.034316][ T9019] Code: 24 30 44 89 fe 83 e6 1f 31 ff e8 6d a8 d4 fa 41 83 e7 1f 74 44 48 85 db 74 3f 48 8b 44 24 50 49 8d 1c 86 48 89 d8 48 c1 e8 03 <42> 8a 04 20 84 c0 0f 85 06 07 00 00 8b 1b 4c 89 f9 f6 d9 d3 e3 d3 [ 63.053916][ T9019] RSP: 0018:ffffc900021376c0 EFLAGS: 00010a07 [ 63.059960][ T9019] RAX: 1ffff11019043287 RBX: ffff8880c821943c RCX: 0000000000000000 [ 63.067930][ T9019] RDX: dffffc0000000000 RSI: 0000000000000010 RDI: 0000000000000000 [ 63.075889][ T9019] RBP: ffffc900021377b0 R08: ffffffff86a264c3 R09: ffffffff83bbc3c7 [ 63.083855][ T9019] R10: ffff88809333e500 R11: 0000000000000004 R12: dffffc0000000000 [ 63.091816][ T9019] R13: ffffc90002137ab0 R14: ffff8880a8219440 R15: 0000000000000010 [ 63.099774][ T9019] FS: 0000000000ead940(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 63.108680][ T9019] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.115242][ T9019] CR2: ffffed1019043287 CR3: 0000000092c5f000 CR4: 00000000001406e0 [ 63.123192][ T9019] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.131167][ T9019] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.139113][ T9019] Call Trace: [ 63.142387][ T9019] ? memcpy+0x49/0x60 [ 63.146358][ T9019] ethnl_update_bitset+0x3c/0x50 [ 63.151273][ T9019] ethnl_set_linkmodes+0x5d4/0xf80 [ 63.156369][ T9019] genl_rcv_msg+0xf15/0x13e0 [ 63.160943][ T9019] netlink_rcv_skb+0x19e/0x3e0 [ 63.165680][ T9019] ? genl_unbind+0x250/0x250 [ 63.170246][ T9019] genl_rcv+0x28/0x40 [ 63.174204][ T9019] netlink_unicast+0x766/0x920 [ 63.178943][ T9019] netlink_sendmsg+0xa2b/0xd40 [ 63.183696][ T9019] ? netlink_getsockopt+0x9f0/0x9f0 [ 63.188894][ T9019] ____sys_sendmsg+0x4f7/0x7f0 [ 63.193636][ T9019] __sys_sendmsg+0x1ed/0x290 [ 63.198202][ T9019] ? check_preemption_disabled+0xb4/0x260 [ 63.203889][ T9019] ? debug_smp_processor_id+0x9/0x20 [ 63.209162][ T9019] ? __kasan_check_write+0x14/0x20 [ 63.214245][ T9019] ? __fpregs_load_activate+0x194/0x220 [ 63.219774][ T9019] ? switch_fpu_return+0xe/0x10 [ 63.224609][ T9019] ? prepare_exit_to_usermode+0x221/0x5b0 [ 63.230567][ T9019] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 63.236032][ T9019] ? trace_irq_disable_rcuidle+0x23/0x1e0 [ 63.241759][ T9019] ? do_syscall_64+0x1d/0x1c0 [ 63.246412][ T9019] __x64_sys_sendmsg+0x7f/0x90 [ 63.251203][ T9019] do_syscall_64+0xf7/0x1c0 [ 63.255700][ T9019] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 63.261572][ T9019] RIP: 0033:0x446199 [ 63.265441][ T9019] Code: 43 02 00 85 c0 b8 00 00 00 00 48 0f 44 c3 5b c3 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 2b d2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 63.285024][ T9019] RSP: 002b:00007ffd39369c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 63.293409][ T9019] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000446199 [ 63.301361][ T9019] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 63.309309][ T9019] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000003 [ 63.317304][ T9019] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd39369cb0 [ 63.325257][ T9019] R13: 0000000000000003 R14: 0000000000000004 R15: 00007ffd39369da0 [ 63.333220][ T9019] Modules linked in: [ 63.337100][ T9019] CR2: ffffed1019043287 [ 63.341241][ T9019] ---[ end trace 794d8a42e73b8149 ]--- [ 63.346687][ T9019] RIP: 0010:ethnl_update_bitset32+0x1afe/0x2380 [ 63.352924][ T9019] Code: 24 30 44 89 fe 83 e6 1f 31 ff e8 6d a8 d4 fa 41 83 e7 1f 74 44 48 85 db 74 3f 48 8b 44 24 50 49 8d 1c 86 48 89 d8 48 c1 e8 03 <42> 8a 04 20 84 c0 0f 85 06 07 00 00 8b 1b 4c 89 f9 f6 d9 d3 e3 d3 [ 63.372506][ T9019] RSP: 0018:ffffc900021376c0 EFLAGS: 00010a07 [ 63.378554][ T9019] RAX: 1ffff11019043287 RBX: ffff8880c821943c RCX: 0000000000000000 [ 63.386516][ T9019] RDX: dffffc0000000000 RSI: 0000000000000010 RDI: 0000000000000000 [ 63.394465][ T9019] RBP: ffffc900021377b0 R08: ffffffff86a264c3 R09: ffffffff83bbc3c7 [ 63.402415][ T9019] R10: ffff88809333e500 R11: 0000000000000004 R12: dffffc0000000000 [ 63.410419][ T9019] R13: ffffc90002137ab0 R14: ffff8880a8219440 R15: 0000000000000010 [ 63.418397][ T9019] FS: 0000000000ead940(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 [ 63.427302][ T9019] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.433867][ T9019] CR2: ffffed1019043287 CR3: 0000000092c5f000 CR4: 00000000001406e0 [ 63.441818][ T9019] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.449771][ T9019] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.457751][ T9019] Kernel panic - not syncing: Fatal exception [ 63.464984][ T9019] Kernel Offset: disabled [ 63.469301][ T9019] Rebooting in 86400 seconds..