last executing test programs: kernel console output (not intermixed with test programs): [ 69.352558][ T28] audit: type=1400 audit(69.070:56): avc: denied { read write } for pid=3092 comm="sftp-server" name="null" dev="devtmpfs" ino=4 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 69.373771][ T28] audit: type=1400 audit(69.090:57): avc: denied { open } for pid=3092 comm="sftp-server" path="/dev/null" dev="devtmpfs" ino=4 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 Warning: Permanently added '[localhost]:41663' (ED25519) to the list of known hosts. [ 94.851685][ T28] audit: type=1400 audit(94.570:58): avc: denied { name_bind } for pid=3095 comm="sshd-session" src=30000 scontext=system_u:system_r:sshd_t tcontext=system_u:object_r:unreserved_port_t tclass=tcp_socket permissive=1 [ 95.830210][ T28] audit: type=1400 audit(95.550:59): avc: denied { execute } for pid=3096 comm="sh" name="syz-executor" dev="vda" ino=805 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 [ 95.857655][ T28] audit: type=1400 audit(95.560:60): avc: denied { execute_no_trans } for pid=3096 comm="sh" path="/syz-executor" dev="vda" ino=805 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:etc_runtime_t tclass=file permissive=1 [ 100.920170][ T28] audit: type=1400 audit(100.630:61): avc: denied { mounton } for pid=3096 comm="syz-executor" path="/syzcgroup/unified" dev="vda" ino=806 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 100.931434][ T28] audit: type=1400 audit(100.650:62): avc: denied { mount } for pid=3096 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 [ 100.948231][ T3096] cgroup: Unknown subsys name 'net' [ 100.955454][ T28] audit: type=1400 audit(100.670:63): avc: denied { unmount } for pid=3096 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 101.113913][ T3096] cgroup: Unknown subsys name 'cpuset' [ 101.128465][ T3096] cgroup: Unknown subsys name 'hugetlb' [ 101.129653][ T3096] cgroup: Unknown subsys name 'rlimit' [ 101.155496][ T957] BUG: workqueue leaked atomic, lock or RCU: kworker/u8:7[957] [ 101.155496][ T957] preempt=0x00000000 lock=0->0 RCU=0->124 workfn=wb_workfn [ 101.161747][ T957] CPU: 1 UID: 0 PID: 957 Comm: kworker/u8:7 Not tainted syzkaller #0 PREEMPT [ 101.162679][ T957] Hardware name: ARM-Versatile Express [ 101.162953][ T957] Workqueue: writeback wb_workfn (flush-253:0) [ 101.163607][ T957] Call trace: [ 101.163958][ T957] [<80201a14>] (dump_backtrace) from [<80201b08>] (show_stack+0x18/0x1c) [ 101.164334][ T957] r7:60000013 r6:60000013 r5:8231c0d0 r4:00000000 [ 101.164436][ T957] [<80201af0>] (show_stack) from [<8021e320>] (dump_stack_lvl+0x5c/0x70) [ 101.164499][ T957] [<8021e2c4>] (dump_stack_lvl) from [<8021e34c>] (dump_stack+0x18/0x1c) [ 101.164563][ T957] r7:83012a00 r6:83801200 r5:84265554 r4:84127a00 [ 101.164580][ T957] [<8021e334>] (dump_stack) from [<802766a8>] (process_one_work+0x510/0x5a0) [ 101.164636][ T957] [<80276198>] (process_one_work) from [<80277124>] (worker_thread+0x16c/0x318) [ 101.164721][ T957] r10:00000000 r9:84127a30 r8:833de200 r7:82a03d80 r6:83012a20 r5:83012a00 [ 101.164754][ T957] r4:84127a00 [ 101.164771][ T957] [<80276fb8>] (worker_thread) from [<8028117c>] (kthread+0x11c/0x154) [ 101.164836][ T957] r10:00000000 r9:df849e88 r8:844da480 r7:84127a00 r6:80276fb8 r5:833de200 [ 101.164857][ T957] r4:84131f40 [ 101.164872][ T957] [<80281060>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 101.164987][ T957] Exception stack(0xe0449fb0 to 0xe0449ff8) [ 101.165138][ T957] 9fa0: 00000000 00000000 00000000 00000000 [ 101.165186][ T957] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 101.165218][ T957] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 101.165289][ T957] r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281060 r4:84131f40 [ 101.200113][ T957] ------------[ cut here ]------------ [ 101.200522][ T957] WARNING: kernel/rcu/tree_plugin.h:332 at rcu_note_context_switch+0x4ac/0x638, CPU#1: kworker/u8:7/957 [ 101.204300][ T957] Voluntary context switch within RCU read-side critical section! [ 101.204454][ T957] Modules linked in: [ 101.207104][ T957] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 101.207612][ T957] CPU: 1 UID: 0 PID: 957 Comm: kworker/u8:7 Not tainted syzkaller #0 PREEMPT [ 101.208349][ T957] Hardware name: ARM-Versatile Express [ 101.208640][ T957] Workqueue: 0x0 (flush-253:0) [ 101.209283][ T957] Call trace: [ 101.210110][ T957] [<80201a14>] (dump_backtrace) from [<80201b08>] (show_stack+0x18/0x1c) [ 101.210622][ T957] r7:82a1e6f8 r6:00000000 r5:8231c0d0 r4:00000001 [ 101.210962][ T957] [<80201af0>] (show_stack) from [<8021e320>] (dump_stack_lvl+0x5c/0x70) [ 101.211295][ T957] [<8021e2c4>] (dump_stack_lvl) from [<8021e34c>] (dump_stack+0x18/0x1c) [ 101.212879][ T957] r7:82a1e6f8 r6:00000000 r5:833de200 r4:82c7bd3c [ 101.213145][ T957] [<8021e334>] (dump_stack) from [<8020260c>] (vpanic+0x114/0x320) [ 101.215373][ T957] [<802024f8>] (vpanic) from [<8020284c>] (trace_suspend_resume+0x0/0x104) [ 101.219101][ T957] r7:80305444 [ 101.219311][ T957] [<80202818>] (panic) from [<802506a8>] (get_taint+0x0/0x1c) [ 101.219582][ T957] r3:82a0b544 r2:00000001 r1:82302bb8 r0:8230a498 [ 101.219741][ T957] [<80250630>] (check_panic_on_warn) from [<80250824>] (__warn+0x98/0x1ac) [ 101.219931][ T957] [<8025078c>] (__warn) from [<80250b20>] (warn_slowpath_fmt+0x1e8/0x1f4) [ 101.220152][ T957] r8:00000009 r7:82314c48 r6:e0449e2c r5:833de200 r4:00000000 [ 101.220316][ T957] [<8025093c>] (warn_slowpath_fmt) from [<80305444>] (rcu_note_context_switch+0x4ac/0x638) [ 101.220596][ T957] r10:00000000 r9:84127a30 r8:00000002 r7:82c6c24c r6:00000000 r5:833de200 [ 101.220781][ T957] r4:ddde5f00 [ 101.220868][ T957] [<80304f98>] (rcu_note_context_switch) from [<81b0718c>] (__schedule+0xd0/0x1464) [ 101.221089][ T957] r10:00000000 r9:84127a30 r8:00000002 r7:82a03d80 r6:833de200 r5:ddde5480 [ 101.221271][ T957] r4:00000000 [ 101.221351][ T957] [<81b070bc>] (__schedule) from [<81b0854c>] (schedule+0x2c/0x134) [ 101.221591][ T957] r10:00000000 r9:84127a30 r8:833de200 r7:82a03d80 r6:83012a20 r5:83012a00 [ 101.221777][ T957] r4:833de200 [ 101.221861][ T957] [<81b08520>] (schedule) from [<80277058>] (worker_thread+0xa0/0x318) [ 101.222051][ T957] r5:83012a00 r4:84127a00 [ 101.222148][ T957] [<80276fb8>] (worker_thread) from [<8028117c>] (kthread+0x11c/0x154) [ 101.222346][ T957] r10:00000000 r9:df849e88 r8:844da480 r7:84127a00 r6:80276fb8 r5:833de200 [ 101.222516][ T957] r4:84131f40 [ 101.222601][ T957] [<80281060>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20) [ 101.222787][ T957] Exception stack(0xe0449fb0 to 0xe0449ff8) [ 101.222961][ T957] 9fa0: 00000000 00000000 00000000 00000000 [ 101.223320][ T957] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 101.223637][ T957] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 101.223906][ T957] r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80281060 r4:84131f40 [ 101.226074][ T957] Rebooting in 86400 seconds.. VM DIAGNOSIS: 21:37:18 Registers: info registers vcpu 0 CPU#0 R00=ffffffb7 R01=dfe85dcc R02=00000000 R03=00000000 R04=83491ecc R05=60030013 R06=8022bb94 R07=00000001 R08=ffffffff R09=00000006 R10=82cca1b0 R11=dfe85d34 R12=dfe85cf8 R13=dfe85d78 R14=81b04414 R15=80559810 PSR=20030013 --C- A S svc32 s00=656e7265 s01=5b203a6c d00=5b203a6c656e7265 s02=30312020 s03=32312e31 d01=32312e3130312020 s04=33353639 s05=54205b5d d02=54205b5d33353639 s06=36393033 s07=6763205d d03=6763205d36393033 s08=70756f72 s09=6e55203a d04=6e55203a70756f72 s10=776f6e6b s11=7573206e d05=7573206e776f6e6b s12=73797362 s13=6d616e20 d06=6d616e2073797362 s14=72272065 s15=696d696c d07=696d696c72272065 s16=00000000 s17=00000000 d08=0000000000000000 s18=00000000 s19=00000000 d09=0000000000000000 s20=00000000 s21=00000000 d10=0000000000000000 s22=00000000 s23=00000000 d11=0000000000000000 s24=00000000 s25=00000000 d12=0000000000000000 s26=00000000 s27=00000000 d13=0000000000000000 s28=00000000 s29=00000000 d14=0000000000000000 s30=00000000 s31=00000000 d15=0000000000000000 s32=00000000 s33=00000000 d16=0000000000000000 s34=00000000 s35=00000000 d17=0000000000000000 s36=00000000 s37=00000000 d18=0000000000000000 s38=00000000 s39=00000000 d19=0000000000000000 s40=00000000 s41=00000000 d20=0000000000000000 s42=00000000 s43=00000000 d21=0000000000000000 s44=00000000 s45=00000000 d22=0000000000000000 s46=00000000 s47=00000000 d23=0000000000000000 s48=00000000 s49=00000000 d24=0000000000000000 s50=00000000 s51=00000000 d25=0000000000000000 s52=00000000 s53=00000000 d26=0000000000000000 s54=00000000 s55=00000000 d27=0000000000000000 s56=00000000 s57=00000000 d28=0000000000000000 s58=00000000 s59=00000000 d29=0000000000000000 s60=00000000 s61=00000000 d30=0000000000000000 s62=00000000 s63=00000000 d31=0000000000000000 FPSCR: 00000000 info registers vcpu 1 CPU#1 R00=00000000 R01=00000000 R02=00000000 R03=833de200 R04=84127a00 R05=833de200 R06=8231c0d0 R07=83137200 R08=00000002 R09=000003bd R10=00000000 R11=e0449e64 R12=e0449d48 R13=e0449df8 R14=802e123c R15=80279974 PSR=60000093 -ZC- A S svc32 s00=616c6374 s01=663d7373 d00=663d7373616c6374 s02=3270756f s03=6e692022 d01=6e6920223270756f s04=20313d6f s05=6e6f6373 d02=6e6f637320313d6f s06=74786574 s07=6f6f723d d03=6f6f723d74786574 s08=79733a74 s09=6d646173 d04=6d64617379733a74 s10=733a725f s11=64617379 d05=64617379733a725f s12=20745f6d s13=6e6f6374 d06=6e6f637420745f6d s14=74786574 s15=7379733d d07=7379733d74786574 s16=00000000 s17=00000000 d08=0000000000000000 s18=00000000 s19=00000000 d09=0000000000000000 s20=00000000 s21=00000000 d10=0000000000000000 s22=00000000 s23=00000000 d11=0000000000000000 s24=00000000 s25=00000000 d12=0000000000000000 s26=00000000 s27=00000000 d13=0000000000000000 s28=00000000 s29=00000000 d14=0000000000000000 s30=00000000 s31=00000000 d15=0000000000000000 s32=00000000 s33=00000000 d16=0000000000000000 s34=00000000 s35=00000000 d17=0000000000000000 s36=00000000 s37=00000000 d18=0000000000000000 s38=00000000 s39=00000000 d19=0000000000000000 s40=00000000 s41=00000000 d20=0000000000000000 s42=00000000 s43=00000000 d21=0000000000000000 s44=00000000 s45=00000000 d22=0000000000000000 s46=00000000 s47=00000000 d23=0000000000000000 s48=00000000 s49=00000000 d24=0000000000000000 s50=00000000 s51=00000000 d25=0000000000000000 s52=00000000 s53=00000000 d26=0000000000000000 s54=00000000 s55=00000000 d27=0000000000000000 s56=00000000 s57=00000000 d28=0000000000000000 s58=00000000 s59=00000000 d29=0000000000000000 s60=00000000 s61=00000000 d30=0000000000000000 s62=00000000 s63=00000000 d31=0000000000000000 FPSCR: 00000000