[ 7.377134][ T2773] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: [ 7.488410][ T2848] sshd (2848) used greatest stack depth: 11192 bytes left OK syzkaller syzkaller login: [ 13.914642][ T23] kauditd_printk_skb: 60 callbacks suppressed [ 13.914656][ T23] audit: type=1400 audit(1674465748.354:72): avc: denied { transition } for pid=2931 comm="sshd" path="/bin/sh" dev="sda1" ino=73 scontext=system_u:system_r:initrc_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 13.919443][ T23] audit: type=1400 audit(1674465748.354:73): avc: denied { write } for pid=2931 comm="sh" path="pipe:[15163]" dev="pipefs" ino=15163 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 Warning: Permanently added '10.128.1.105' (ECDSA) to the list of known hosts. 2023/01/23 09:22:35 fuzzer started 2023/01/23 09:22:35 dialing manager at 10.128.0.163:40519 [ 26.203877][ T23] audit: type=1400 audit(1674465760.644:74): avc: denied { mounton } for pid=3105 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=1136 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 26.213252][ T3105] cgroup: Unknown subsys name 'net' [ 26.226679][ T23] audit: type=1400 audit(1674465760.644:75): avc: denied { mount } for pid=3105 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 [ 26.253971][ T23] audit: type=1400 audit(1674465760.664:76): avc: denied { unmount } for pid=3105 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 26.394906][ T3105] cgroup: Unknown subsys name 'rlimit' 2023/01/23 09:22:40 syscalls: 2806 2023/01/23 09:22:40 code coverage: enabled 2023/01/23 09:22:40 comparison tracing: enabled 2023/01/23 09:22:40 extra coverage: enabled 2023/01/23 09:22:40 delay kcov mmap: enabled 2023/01/23 09:22:40 setuid sandbox: enabled 2023/01/23 09:22:40 namespace sandbox: enabled 2023/01/23 09:22:40 Android sandbox: enabled 2023/01/23 09:22:40 fault injection: enabled 2023/01/23 09:22:40 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2023/01/23 09:22:40 net packet injection: enabled 2023/01/23 09:22:40 net device setup: enabled 2023/01/23 09:22:40 concurrency sanitizer: enabled 2023/01/23 09:22:40 devlink PCI setup: PCI device 0000:00:10.0 is not available 2023/01/23 09:22:40 NIC VF setup: PCI device 0000:00:11.0 is not available 2023/01/23 09:22:40 USB emulation: /dev/raw-gadget does not exist 2023/01/23 09:22:40 hci packet injection: /dev/vhci does not exist 2023/01/23 09:22:40 wifi device emulation: /sys/class/mac80211_hwsim/ does not exist 2023/01/23 09:22:40 802.15.4 emulation: enabled 2023/01/23 09:22:40 suppressing KCSAN reports in functions: '__xa_clear_mark' '__ext4_update_other_inode_time' 'do_select' 'shmem_file_read_iter' 'fsnotify' 'generic_write_end' 'exit_mm' 'generic_fillattr' 'can_send' 'ext4_do_writepages' 'ext4_free_inodes_count' 'can_receive' 'dont_mount' 'fsnotify_detach_mark' '__xa_set_mark' 'ext4_fill_raw_inode' 'do_sys_poll' 'blk_mq_sched_dispatch_requests' 'xas_clear_mark' 'tick_sched_timer' 2023/01/23 09:22:41 fetching corpus: 0, signal 0/2000 (executing program) [ 26.514866][ T23] audit: type=1400 audit(1674465760.954:77): avc: denied { mounton } for pid=3105 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 [ 26.539957][ T23] audit: type=1400 audit(1674465760.954:78): avc: denied { mount } for pid=3105 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 [ 26.563543][ T23] audit: type=1400 audit(1674465760.954:79): avc: denied { create } for pid=3105 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 26.584046][ T23] audit: type=1400 audit(1674465760.954:80): avc: denied { write } for pid=3105 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 26.604454][ T23] audit: type=1400 audit(1674465760.954:81): avc: denied { read } for pid=3105 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 2023/01/23 09:22:41 fetching corpus: 50, signal 13448/17258 (executing program) 2023/01/23 09:22:41 fetching corpus: 100, signal 26235/31660 (executing program) 2023/01/23 09:22:41 fetching corpus: 150, signal 33759/40777 (executing program) 2023/01/23 09:22:41 fetching corpus: 200, signal 36638/45301 (executing program) 2023/01/23 09:22:41 fetching corpus: 250, signal 45642/55641 (executing program) 2023/01/23 09:22:41 fetching corpus: 300, 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(executing program) 2023/01/23 09:22:43 fetching corpus: 950, signal 80518/108596 (executing program) 2023/01/23 09:22:43 fetching corpus: 1000, signal 82605/111770 (executing program) 2023/01/23 09:22:43 fetching corpus: 1050, signal 84436/114695 (executing program) 2023/01/23 09:22:43 fetching corpus: 1100, signal 85939/117342 (executing program) 2023/01/23 09:22:44 fetching corpus: 1150, signal 88095/120435 (executing program) 2023/01/23 09:22:44 fetching corpus: 1200, signal 89878/123231 (executing program) 2023/01/23 09:22:44 fetching corpus: 1250, signal 91348/125768 (executing program) 2023/01/23 09:22:44 fetching corpus: 1300, signal 92417/127949 (executing program) 2023/01/23 09:22:44 fetching corpus: 1350, signal 94308/130806 (executing program) 2023/01/23 09:22:44 fetching corpus: 1400, signal 95544/133088 (executing program) 2023/01/23 09:22:44 fetching corpus: 1450, signal 96614/135230 (executing program) 2023/01/23 09:22:44 fetching corpus: 1500, signal 98046/137603 (executing program) 2023/01/23 09:22:45 fetching corpus: 1550, signal 99027/139644 (executing program) [ 30.663783][ T0] ================================================================== [ 30.671883][ T0] BUG: KCSAN: data-race in tick_nohz_stop_tick / tick_nohz_stop_tick [ 30.679950][ T0] [ 30.682325][ T0] write to 0xffffffff85ed51f0 of 4 bytes by task 0 on cpu 1: [ 30.691691][ T0] tick_nohz_stop_tick+0xa0/0x400 [ 30.696732][ T0] tick_nohz_idle_stop_tick+0x174/0x2c0 [ 30.702491][ T0] do_idle+0x18a/0x250 [ 30.706578][ T0] cpu_startup_entry+0x15/0x20 [ 30.711377][ T0] start_secondary+0x78/0x80 [ 30.716069][ T0] secondary_startup_64_no_verify+0xcf/0xdb [ 30.721991][ T0] [ 30.724315][ T0] read to 0xffffffff85ed51f0 of 4 bytes by task 0 on cpu 0: [ 30.731610][ T0] tick_nohz_stop_tick+0x7a/0x400 [ 30.736646][ T0] tick_nohz_idle_stop_tick+0x174/0x2c0 [ 30.742207][ T0] do_idle+0x18a/0x250 [ 30.746391][ T0] cpu_startup_entry+0x15/0x20 [ 30.751174][ T0] rest_init+0xe8/0xf0 [ 30.755257][ T0] arch_call_rest_init+0x5/0x10 [ 30.760115][ T0] start_kernel+0x59e/0x630 [ 30.764690][ T0] secondary_startup_64_no_verify+0xcf/0xdb [ 30.770681][ T0] [ 30.773077][ T0] value changed: 0x00000001 -> 0xffffffff [ 30.778787][ T0] [ 30.781119][ T0] Reported by Kernel Concurrency Sanitizer on: [ 30.787361][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.2.0-rc5-syzkaller-00013-g2475bf0250de-dirty #0 [ 30.797511][ T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 30.807672][ T0] ================================================================== 2023/01/23 09:22:45 fetching corpus: 1600, signal 100951/142353 (executing program) 2023/01/23 09:22:45 fetching corpus: 1650, signal 103547/145532 (executing program) 2023/01/23 09:22:45 fetching corpus: 1700, signal 104679/147616 (executing program) 2023/01/23 09:22:45 fetching corpus: 1750, signal 105554/149507 (executing program) 2023/01/23 09:22:45 fetching corpus: 1800, signal 106744/151584 (executing 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