Warning: Permanently added '10.128.0.181' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 1063.902495] ================================================================== [ 1063.910049] BUG: KASAN: use-after-free in __ip6_append_data.isra.0+0x284f/0x3450 [ 1063.917592] Read of size 2 at addr ffff8801c985023a by task syz-executor343/17861 [ 1063.925296] [ 1063.926926] CPU: 1 PID: 17861 Comm: syz-executor343 Not tainted 4.9.202+ #0 [ 1063.934033] ffff8801c92074c8 ffffffff81b55d2b 0000000000000000 ffffea0007261400 [ 1063.942117] ffff8801c985023a 0000000000000002 ffffffff826a022f ffff8801c9207500 [ 1063.950330] ffffffff8150c321 0000000000000000 ffff8801c985023a ffff8801c985023a [ 1063.958409] Call Trace: [ 1063.961050] [<00000000319c1862>] dump_stack+0xcb/0x130 [ 1063.966422] [<000000003dc98037>] ? __ip6_append_data.isra.0+0x284f/0x3450 [ 1063.973522] [<00000000d98cee61>] print_address_description+0x6f/0x23a [ 1063.980200] [<000000003dc98037>] ? __ip6_append_data.isra.0+0x284f/0x3450 [ 1063.987306] [<000000002bf6779b>] kasan_report.cold+0x8c/0x2ba [ 1063.993285] [<00000000eb2acbc8>] __asan_report_load2_noabort+0x14/0x20 [ 1064.000041] [<000000003dc98037>] __ip6_append_data.isra.0+0x284f/0x3450 [ 1064.006979] [<0000000075dd8271>] ? ip_reply_glue_bits+0xb0/0xb0 [ 1064.013135] [<00000000407b7559>] ? ip6_flush_pending_frames+0xb0/0xb0 [ 1064.019881] [<0000000097bf21c6>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 1064.026641] [<00000000aab7ba23>] ip6_append_data+0x1dd/0x310 [ 1064.032533] [<0000000075dd8271>] ? ip_reply_glue_bits+0xb0/0xb0 [ 1064.038681] [<0000000075dd8271>] ? ip_reply_glue_bits+0xb0/0xb0 [ 1064.044891] [<00000000a8a7606f>] udpv6_sendmsg+0x1322/0x2430 [ 1064.050856] [<00000000ccb14ab2>] ? __lock_acquire+0x5e0/0x4390 [ 1064.056920] [<0000000075dd8271>] ? ip_reply_glue_bits+0xb0/0xb0 [ 1064.063067] [<000000005e754fe4>] ? udp_v6_flush_pending_frames+0xe0/0xe0 [ 1064.070062] [<00000000892c20ee>] ? sock_has_perm+0x29a/0x3e0 [ 1064.075974] [<0000000075cd4595>] ? sock_has_perm+0xa6/0x3e0 [ 1064.081777] [<000000009f7e81c1>] ? selinux_msg_queue_alloc_security+0x2e0/0x2e0 [ 1064.089322] [<0000000097bf21c6>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 1064.096173] [<0000000029591f5c>] ? check_preemption_disabled+0x3c/0x200 [ 1064.103039] [<0000000029591f5c>] ? check_preemption_disabled+0x3c/0x200 [ 1064.109884] [<0000000029591f5c>] ? check_preemption_disabled+0x3c/0x200 [ 1064.116749] [<0000000081ab3f2c>] ? inet_sendmsg+0x143/0x4d0 [ 1064.122545] [<0000000059b80bbd>] inet_sendmsg+0x202/0x4d0 [ 1064.128174] [<0000000098d53209>] ? inet_sendmsg+0x76/0x4d0 [ 1064.134936] [<000000001234bcb6>] ? inet_recvmsg+0x4d0/0x4d0 [ 1064.140799] [<0000000048aaf6e2>] sock_sendmsg+0xbe/0x110 [ 1064.147204] [<00000000783f5cfb>] ___sys_sendmsg+0x387/0x8b0 [ 1064.153005] [<00000000125d6825>] ? copy_msghdr_from_user+0x550/0x550 [ 1064.159588] [<0000000097bf21c6>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 1064.166347] [<0000000029591f5c>] ? check_preemption_disabled+0x3c/0x200 [ 1064.173184] [<0000000029591f5c>] ? check_preemption_disabled+0x3c/0x200 [ 1064.183166] [<0000000029591f5c>] ? check_preemption_disabled+0x3c/0x200 [ 1064.190039] [<00000000d65fe89f>] ? __fget+0x208/0x370 [ 1064.195312] [<00000000d4752a66>] ? __fget+0x22f/0x370 [ 1064.200586] [<00000000db98fb4b>] ? __fget+0x47/0x370 [ 1064.205772] [<00000000ee892209>] ? __fget_light+0x172/0x1f0 [ 1064.211568] [<00000000a400f2b5>] ? __fdget+0x1b/0x20 [ 1064.216757] [<00000000634ebece>] __sys_sendmmsg+0x164/0x3d0 [ 1064.222556] [<00000000d003b131>] ? SyS_sendmsg+0x50/0x50 [ 1064.228172] [<0000000025bb5562>] ? _raw_spin_unlock+0x2d/0x50 [ 1064.234147] [<0000000097bf21c6>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 1064.240966] [<000000005bbe4311>] ? __do_page_fault+0x41e/0xa60 [ 1064.247028] [<0000000019a3baf8>] ? up_read+0x1a/0x40 [ 1064.252217] [<00000000b5f357e6>] ? __do_page_fault+0x545/0xa60 [ 1064.258272] [<000000009f13ae2b>] ? _raw_spin_unlock_irq+0x28/0x60 [ 1064.264588] [<000000000f6a65f4>] SyS_sendmmsg+0x35/0x60 [ 1064.270036] [<000000008837e079>] ? __sys_sendmmsg+0x3d0/0x3d0 [ 1064.276044] [<00000000fbd08a9a>] do_syscall_64+0x1ad/0x5c0 [ 1064.281757] [<000000003fe04d7a>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 1064.288671] [ 1064.290286] The buggy address belongs to the page: [ 1064.295210] page:ffffea0007261400 count:0 mapcount:-127 mapping: (null) index:0x0 [ 1064.303721] flags: 0x4000000000000000() [ 1064.307668] page dumped because: kasan: bad access detected [ 1064.313447] [ 1064.315052] Memory state around the buggy address: [ 1064.319956] ffff8801c9850100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 1064.327294] ffff8801c9850180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 1064.334631] >ffff8801c9850200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 1064.341964] ^ [ 1064.347134] ffff8801c9850280: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff executing program executing program [ 1064.354490] ffff8801c9850300: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 1064.361824] ================================================================== [ 1064.369269] Disabling lock debugging due to kernel taint [ 1064.375657] Kernel panic - not syncing: panic_on_warn set ... [ 1064.375657] [ 1064.383033] CPU: 1 PID: 17861 Comm: syz-executor343 Tainted: G B 4.9.202+ #0 [ 1064.391339] ffff8801c9207408 ffffffff81b55d2b ffff8801c9207500 ffffffff82e3f768 [ 1064.399498] 00000000ffffffff 0000000000000001 ffffffff826a022f ffff8801c92074e8 [ 1064.407529] ffffffff813fef21 0000000041b58ab3 ffffffff82e316f3 ffffffff813fed41 [ 1064.415659] Call Trace: [ 1064.418229] [<00000000319c1862>] dump_stack+0xcb/0x130 [ 1064.423579] [<000000003dc98037>] ? __ip6_append_data.isra.0+0x284f/0x3450 [ 1064.430639] [<000000009a04174c>] panic+0x1e0/0x3c4 [ 1064.435658] [<00000000a22eb913>] ? add_taint.cold+0x16/0x16 [ 1064.441483] [<00000000012a753c>] ? preempt_schedule_common+0x4f/0xe0 [ 1064.448051] [<000000003dc98037>] ? __ip6_append_data.isra.0+0x284f/0x3450 [ 1064.455063] [<000000005644bbd8>] ? preempt_schedule+0x26/0x30 [ 1064.461016] [<000000000a77e692>] ? ___preempt_schedule+0x16/0x18 [ 1064.467228] [<000000003b1b14e6>] kasan_end_report+0x47/0x4f [ 1064.473020] [<000000008879c156>] kasan_report.cold+0xa9/0x2ba [ 1064.478999] [<00000000eb2acbc8>] __asan_report_load2_noabort+0x14/0x20 [ 1064.485754] [<000000003dc98037>] __ip6_append_data.isra.0+0x284f/0x3450 [ 1064.492693] [<0000000075dd8271>] ? ip_reply_glue_bits+0xb0/0xb0 [ 1064.498845] [<00000000407b7559>] ? ip6_flush_pending_frames+0xb0/0xb0 [ 1064.505584] [<0000000097bf21c6>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 1064.512330] [<00000000aab7ba23>] ip6_append_data+0x1dd/0x310 [ 1064.518213] [<0000000075dd8271>] ? ip_reply_glue_bits+0xb0/0xb0 [ 1064.524512] [<0000000075dd8271>] ? ip_reply_glue_bits+0xb0/0xb0 [ 1064.530637] [<00000000a8a7606f>] udpv6_sendmsg+0x1322/0x2430 [ 1064.536510] [<00000000ccb14ab2>] ? __lock_acquire+0x5e0/0x4390 [ 1064.542556] [<0000000075dd8271>] ? ip_reply_glue_bits+0xb0/0xb0 [ 1064.548699] [<000000005e754fe4>] ? udp_v6_flush_pending_frames+0xe0/0xe0 [ 1064.555609] [<00000000892c20ee>] ? sock_has_perm+0x29a/0x3e0 [ 1064.561476] [<0000000075cd4595>] ? sock_has_perm+0xa6/0x3e0 [ 1064.567249] [<000000009f7e81c1>] ? selinux_msg_queue_alloc_security+0x2e0/0x2e0 [ 1064.574762] [<0000000097bf21c6>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 1064.581493] [<0000000029591f5c>] ? check_preemption_disabled+0x3c/0x200 [ 1064.588314] [<0000000029591f5c>] ? check_preemption_disabled+0x3c/0x200 [ 1064.595142] [<0000000029591f5c>] ? check_preemption_disabled+0x3c/0x200 [ 1064.601974] [<0000000081ab3f2c>] ? inet_sendmsg+0x143/0x4d0 [ 1064.607759] [<0000000059b80bbd>] inet_sendmsg+0x202/0x4d0 [ 1064.613375] [<0000000098d53209>] ? inet_sendmsg+0x76/0x4d0 [ 1064.619095] [<000000001234bcb6>] ? inet_recvmsg+0x4d0/0x4d0 [ 1064.624891] [<0000000048aaf6e2>] sock_sendmsg+0xbe/0x110 [ 1064.630451] [<00000000783f5cfb>] ___sys_sendmsg+0x387/0x8b0 [ 1064.636227] [<00000000125d6825>] ? copy_msghdr_from_user+0x550/0x550 [ 1064.644968] [<0000000097bf21c6>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 1064.651719] [<0000000029591f5c>] ? check_preemption_disabled+0x3c/0x200 [ 1064.658540] [<0000000029591f5c>] ? check_preemption_disabled+0x3c/0x200 [ 1064.665372] [<0000000029591f5c>] ? check_preemption_disabled+0x3c/0x200 [ 1064.672191] [<00000000d65fe89f>] ? __fget+0x208/0x370 [ 1064.677466] [<00000000d4752a66>] ? __fget+0x22f/0x370 [ 1064.682719] [<00000000db98fb4b>] ? __fget+0x47/0x370 [ 1064.688063] [<00000000ee892209>] ? __fget_light+0x172/0x1f0 [ 1064.693859] [<00000000a400f2b5>] ? __fdget+0x1b/0x20 [ 1064.699027] [<00000000634ebece>] __sys_sendmmsg+0x164/0x3d0 [ 1064.704809] [<00000000d003b131>] ? SyS_sendmsg+0x50/0x50 [ 1064.710331] [<0000000025bb5562>] ? _raw_spin_unlock+0x2d/0x50 [ 1064.716287] [<0000000097bf21c6>] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 1064.723200] [<000000005bbe4311>] ? __do_page_fault+0x41e/0xa60 [ 1064.729932] [<0000000019a3baf8>] ? up_read+0x1a/0x40 [ 1064.735104] [<00000000b5f357e6>] ? __do_page_fault+0x545/0xa60 [ 1064.741141] [<000000009f13ae2b>] ? _raw_spin_unlock_irq+0x28/0x60 [ 1064.747442] [<000000000f6a65f4>] SyS_sendmmsg+0x35/0x60 [ 1064.752878] [<000000008837e079>] ? __sys_sendmmsg+0x3d0/0x3d0 [ 1064.758835] [<00000000fbd08a9a>] do_syscall_64+0x1ad/0x5c0 [ 1064.764528] [<000000003fe04d7a>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 1064.772198] Kernel Offset: disabled [ 1064.775811] Rebooting in 86400 seconds..