last executing test programs: kernel console output (not intermixed with test programs): [ 21.204859][ T28] audit: type=1400 audit(1778514801.198:110): avc: denied { search } for pid=3205 comm="dhcpcd-run-hook" name="resolv.conf" dev="tmpfs" ino=488 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 21.228912][ T28] audit: type=1400 audit(1778514801.198:111): avc: denied { read } for pid=3206 comm="dhcpcd-run-hook" name="resolv.conf" dev="tmpfs" ino=488 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 21.260700][ T28] audit: type=1400 audit(1778514801.198:112): avc: denied { read open } for pid=3206 comm="dhcpcd-run-hook" path="/run/dhcpcd/hook-state/resolv.conf" dev="tmpfs" ino=488 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 21.287102][ T28] audit: type=1400 audit(1778514801.198:113): avc: denied { getattr } for pid=3206 comm="dhcpcd-run-hook" path="/run/dhcpcd/hook-state/resolv.conf" dev="tmpfs" ino=488 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 21.329055][ T28] audit: type=1400 audit(1778514801.378:114): avc: denied { write } for pid=3205 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=487 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 21.360949][ T28] audit: type=1400 audit(1778514801.378:115): avc: denied { add_name } for pid=3205 comm="dhcpcd-run-hook" name="resolv.conf.lapb0.ipv4ll" scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 21.384537][ T28] audit: type=1400 audit(1778514801.408:116): avc: denied { write } for pid=3216 comm="rm" name="hook-state" dev="tmpfs" ino=487 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 Warning: Permanently added '10.128.0.104' (ED25519) to the list of known hosts. [ 29.033643][ T28] kauditd_printk_skb: 9 callbacks suppressed [ 29.033661][ T28] audit: type=1400 audit(1778514809.078:126): avc: denied { mounton } for pid=3284 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2023 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 29.062743][ T28] audit: type=1400 audit(1778514809.108:127): avc: denied { mount } for pid=3284 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 29.063444][ T3284] cgroup: Unknown subsys name 'net' [ 29.090539][ T28] audit: type=1400 audit(1778514809.138:128): avc: denied { unmount } for pid=3284 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 29.246362][ T3284] cgroup: Unknown subsys name 'cpuset' [ 29.252823][ T3284] cgroup: Unknown subsys name 'rlimit' [ 29.382623][ T28] audit: type=1400 audit(1778514809.428:129): avc: denied { setattr } for pid=3284 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=142 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 29.409211][ T28] audit: type=1400 audit(1778514809.428:130): avc: denied { create } for pid=3284 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 29.429894][ T28] audit: type=1400 audit(1778514809.428:131): avc: denied { write } for pid=3284 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 29.437454][ T3289] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 29.451180][ T28] audit: type=1400 audit(1778514809.428:132): avc: denied { read } for pid=3284 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 Setting up swapspace version 1, size = 127995904 bytes [ 29.480115][ T28] audit: type=1400 audit(1778514809.428:133): avc: denied { read } for pid=3018 comm="dhcpcd" scontext=system_u:system_r:dhcpc_t tcontext=system_u:system_r:dhcpc_t tclass=netlink_kobject_uevent_socket permissive=1 [ 29.486235][ T3284] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 29.501124][ T28] audit: type=1400 audit(1778514809.428:134): avc: denied { mounton } for pid=3284 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1 [ 29.501151][ T28] audit: type=1400 audit(1778514809.428:135): avc: denied { mount } for pid=3284 comm="syz-executor" name="/" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=filesystem permissive=1 [ 29.612660][ C0] ================================================================== [ 29.620876][ C0] BUG: KCSAN: data-race in virtqueue_disable_cb / virtqueue_disable_cb [ 29.629498][ C0] [ 29.631813][ C0] read to 0xffff8881019dda88 of 2 bytes by interrupt on cpu 1: [ 29.639357][ C0] virtqueue_disable_cb+0x4c/0x2c0 [ 29.644463][ C0] skb_xmit_done+0x67/0x1a0 [ 29.649000][ C0] vring_interrupt+0x2d7/0x310 [ 29.653858][ C0] __handle_irq_event_percpu+0x8b/0x480 [ 29.659412][ C0] handle_irq_event+0x64/0xf0 [ 29.664085][ C0] handle_edge_irq+0x154/0x450 [ 29.668840][ C0] __common_interrupt+0x60/0xb0 [ 29.673687][ C0] common_interrupt+0x7e/0x90 [ 29.678362][ C0] asm_common_interrupt+0x26/0x40 [ 29.683468][ C0] pv_native_safe_halt+0xf/0x20 [ 29.688401][ C0] default_idle+0x9/0x20 [ 29.692638][ C0] default_idle_call+0x3b/0x60 [ 29.697486][ C0] do_idle+0x17f/0x2b0 [ 29.701562][ C0] cpu_startup_entry+0x24/0x30 [ 29.706341][ C0] start_secondary+0x95/0xa0 [ 29.710956][ C0] common_startup_64+0x13e/0x147 [ 29.715988][ C0] [ 29.718332][ C0] write to 0xffff8881019dda88 of 2 bytes by interrupt on cpu 0: [ 29.726055][ C0] virtqueue_disable_cb+0x75/0x2c0 [ 29.731788][ C0] start_xmit+0x107/0x1a60 [ 29.736295][ C0] dev_hard_start_xmit+0x12a/0x3a0 [ 29.741413][ C0] sch_direct_xmit+0x192/0x550 [ 29.746187][ C0] __dev_queue_xmit+0xdb9/0x1ec0 [ 29.751140][ C0] ip_finish_output2+0x705/0x8c0 [ 29.756102][ C0] ip_finish_output+0x112/0x290 [ 29.760972][ C0] ip_output+0xbd/0x1c0 [ 29.765131][ C0] __ip_queue_xmit+0xb68/0xba0 [ 29.769897][ C0] ip_queue_xmit+0x39/0x50 [ 29.774325][ C0] __tcp_transmit_skb+0x1c2a/0x20b0 [ 29.779529][ C0] tcp_write_xmit+0x129e/0x36a0 [ 29.784380][ C0] __tcp_push_pending_frames+0x6d/0x1b0 [ 29.789922][ C0] tcp_rcv_established+0xc52/0x1320 [ 29.795109][ C0] tcp_v4_do_rcv+0x3c5/0xa40 [ 29.799693][ C0] tcp_v4_rcv+0x1861/0x1bb0 [ 29.804194][ C0] ip_protocol_deliver_rcu+0x395/0x790 [ 29.809662][ C0] ip_local_deliver_finish+0x1fc/0x2f0 [ 29.815120][ C0] ip_local_deliver+0xe8/0x1e0 [ 29.819887][ C0] ip_sublist_rcv+0x5a4/0x6a0 [ 29.824668][ C0] ip_list_rcv+0x261/0x290 [ 29.829087][ C0] __netif_receive_skb_list_core+0x4dc/0x500 [ 29.835150][ C0] netif_receive_skb_list_internal+0x47d/0x5f0 [ 29.841335][ C0] napi_complete_done+0x19c/0x3f0 [ 29.846395][ C0] virtnet_poll+0x1b33/0x1fc0 [ 29.851301][ C0] __napi_poll+0x61/0x300 [ 29.855652][ C0] net_rx_action+0x452/0x930 [ 29.860273][ C0] handle_softirqs+0xb9/0x280 [ 29.865038][ C0] __irq_exit_rcu+0x42/0xd0 [ 29.869623][ C0] common_interrupt+0x83/0x90 [ 29.874307][ C0] asm_common_interrupt+0x26/0x40 [ 29.879324][ C0] pv_native_safe_halt+0xf/0x20 [ 29.884202][ C0] default_idle+0x9/0x20 [ 29.888451][ C0] default_idle_call+0x3b/0x60 [ 29.893210][ C0] do_idle+0x17f/0x2b0 [ 29.897299][ C0] cpu_startup_entry+0x24/0x30 [ 29.902083][ C0] rest_init+0xee/0xf0 [ 29.906154][ C0] start_kernel+0x49f/0x4d0 [ 29.910953][ C0] x86_64_start_reservations+0x24/0x30 [ 29.916607][ C0] x86_64_start_kernel+0xfc/0x100 [ 29.921655][ C0] common_startup_64+0x13e/0x147 [ 29.926768][ C0] [ 29.929094][ C0] value changed: 0x0000 -> 0x0001 [ 29.934106][ C0] [ 29.936424][ C0] Reported by Kernel Concurrency Sanitizer on: [ 29.942588][ C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) [ 29.952068][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 29.962739][ C0] ==================================================================