================================================================== BUG: KCSAN: data-race in kauditd_thread / skb_queue_tail write to 0xffffffff84168b48 of 4 bytes by task 26635 on cpu 1: __skb_insert include/linux/skbuff.h:1943 [inline] __skb_queue_before include/linux/skbuff.h:2048 [inline] __skb_queue_tail include/linux/skbuff.h:2081 [inline] skb_queue_tail+0x80/0xa0 net/core/skbuff.c:3310 audit_log_end+0x171/0x1e0 kernel/audit.c:2389 audit_seccomp+0xd9/0xf0 kernel/auditsc.c:2684 seccomp_log kernel/seccomp.c:985 [inline] __seccomp_filter+0xdf5/0xe40 kernel/seccomp.c:1281 __secure_computing+0xfb/0x140 kernel/seccomp.c:1311 syscall_trace_enter+0x120/0x290 kernel/entry/common.c:68 __syscall_enter_from_user_work kernel/entry/common.c:90 [inline] syscall_enter_from_user_mode+0x1c/0x20 kernel/entry/common.c:108 do_syscall_64+0x25/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffffffff84168b48 of 4 bytes by task 22 on cpu 0: skb_queue_len include/linux/skbuff.h:1874 [inline] kauditd_thread+0x612/0x6e0 kernel/audit.c:881 kthread+0x262/0x280 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 value changed: 0x00000001 -> 0x00000002 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 22 Comm: kauditd Not tainted 5.15.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ================================================================== ================================================================== BUG: KCSAN: data-race in kauditd_thread / skb_queue_tail write to 0xffffffff84168b48 of 4 bytes by task 26635 on cpu 1: __skb_insert include/linux/skbuff.h:1943 [inline] __skb_queue_before include/linux/skbuff.h:2048 [inline] __skb_queue_tail include/linux/skbuff.h:2081 [inline] skb_queue_tail+0x80/0xa0 net/core/skbuff.c:3310 audit_log_end+0x171/0x1e0 kernel/audit.c:2389 audit_seccomp+0xd9/0xf0 kernel/auditsc.c:2684 seccomp_log kernel/seccomp.c:985 [inline] __seccomp_filter+0xdf5/0xe40 kernel/seccomp.c:1281 __secure_computing+0xfb/0x140 kernel/seccomp.c:1311 syscall_trace_enter+0x120/0x290 kernel/entry/common.c:68 __syscall_enter_from_user_work kernel/entry/common.c:90 [inline] syscall_enter_from_user_mode+0x1c/0x20 kernel/entry/common.c:108 do_syscall_64+0x25/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffffffff84168b48 of 4 bytes by task 22 on cpu 0: skb_queue_len include/linux/skbuff.h:1874 [inline] kauditd_thread+0x53c/0x6e0 kernel/audit.c:881 kthread+0x262/0x280 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 value changed: 0x00000000 -> 0x00000001 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 22 Comm: kauditd Not tainted 5.15.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ================================================================== ================================================================== BUG: KCSAN: data-race in kauditd_thread / skb_queue_tail write to 0xffffffff84168b48 of 4 bytes by task 26638 on cpu 1: __skb_insert include/linux/skbuff.h:1943 [inline] __skb_queue_before include/linux/skbuff.h:2048 [inline] __skb_queue_tail include/linux/skbuff.h:2081 [inline] skb_queue_tail+0x80/0xa0 net/core/skbuff.c:3310 audit_log_end+0x171/0x1e0 kernel/audit.c:2389 audit_seccomp+0xd9/0xf0 kernel/auditsc.c:2684 seccomp_log kernel/seccomp.c:985 [inline] __seccomp_filter+0xdf5/0xe40 kernel/seccomp.c:1281 __secure_computing+0xfb/0x140 kernel/seccomp.c:1311 syscall_trace_enter+0x120/0x290 kernel/entry/common.c:68 __syscall_enter_from_user_work kernel/entry/common.c:90 [inline] syscall_enter_from_user_mode+0x1c/0x20 kernel/entry/common.c:108 do_syscall_64+0x25/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffffffff84168b48 of 4 bytes by task 22 on cpu 0: skb_queue_len include/linux/skbuff.h:1874 [inline] kauditd_thread+0x4d7/0x6e0 kernel/audit.c:881 kthread+0x262/0x280 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 value changed: 0x00000000 -> 0x00000001 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 22 Comm: kauditd Not tainted 5.15.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ================================================================== kauditd_printk_skb: 19756 callbacks suppressed audit: type=1326 audit(1631684843.852:20718): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=system_u:system_r:kernel_t:s0 pid=26635 comm="syz-executor.0" exe="/root/syz-executor.0" sig=0 arch=c000003e syscall=1 compat=0 ip=0x4192df code=0x50000 audit: type=1326 audit(1631684843.892:20719): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=system_u:system_r:kernel_t:s0 pid=26635 comm=20793CFC3C44624FE5C353EF7ED58A exe="/root/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4665f9 code=0x50000 audit: type=1326 audit(1631684843.892:20720): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=system_u:system_r:kernel_t:s0 pid=26635 comm=20793CFC3C44624FE5C353EF7ED58A exe="/root/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4665f9 code=0x50000 audit: type=1326 audit(1631684843.892:20721): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=system_u:system_r:kernel_t:s0 pid=26635 comm=20793CFC3C44624FE5C353EF7ED58A exe="/root/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4665f9 code=0x50000 audit: type=1326 audit(1631684843.892:20722): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=system_u:system_r:kernel_t:s0 pid=26635 comm=20793CFC3C44624FE5C353EF7ED58A exe="/root/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4665f9 code=0x50000 audit: type=1326 audit(1631684843.892:20723): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=system_u:system_r:kernel_t:s0 pid=26635 comm=20793CFC3C44624FE5C353EF7ED58A exe="/root/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4665f9 code=0x50000 audit: type=1326 audit(1631684843.892:20724): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=system_u:system_r:kernel_t:s0 pid=26635 comm=20793CFC3C44624FE5C353EF7ED58A exe="/root/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4665f9 code=0x50000 audit: type=1326 audit(1631684843.892:20725): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=system_u:system_r:kernel_t:s0 pid=26635 comm=20793CFC3C44624FE5C353EF7ED58A exe="/root/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4665f9 code=0x50000 audit: type=1326 audit(1631684843.892:20726): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=system_u:system_r:kernel_t:s0 pid=26635 comm=20793CFC3C44624FE5C353EF7ED58A exe="/root/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4665f9 code=0x50000 audit: type=1326 audit(1631684843.892:20727): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=system_u:system_r:kernel_t:s0 pid=26635 comm=20793CFC3C44624FE5C353EF7ED58A exe="/root/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4665f9 code=0x50000 ================================================================== BUG: KCSAN: data-race in kauditd_thread / skb_queue_tail write to 0xffffffff84168b48 of 4 bytes by task 26732 on cpu 0: __skb_insert include/linux/skbuff.h:1943 [inline] __skb_queue_before include/linux/skbuff.h:2048 [inline] __skb_queue_tail include/linux/skbuff.h:2081 [inline] skb_queue_tail+0x80/0xa0 net/core/skbuff.c:3310 audit_log_end+0x171/0x1e0 kernel/audit.c:2389 audit_seccomp+0xd9/0xf0 kernel/auditsc.c:2684 seccomp_log kernel/seccomp.c:985 [inline] __seccomp_filter+0xdf5/0xe40 kernel/seccomp.c:1281 __secure_computing+0xfb/0x140 kernel/seccomp.c:1311 syscall_trace_enter+0x120/0x290 kernel/entry/common.c:68 __syscall_enter_from_user_work kernel/entry/common.c:90 [inline] syscall_enter_from_user_mode+0x1c/0x20 kernel/entry/common.c:108 do_syscall_64+0x25/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffffffff84168b48 of 4 bytes by task 22 on cpu 1: skb_queue_len include/linux/skbuff.h:1874 [inline] kauditd_thread+0x4d7/0x6e0 kernel/audit.c:881 kthread+0x262/0x280 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 value changed: 0x00000000 -> 0x00000001 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 22 Comm: kauditd Not tainted 5.15.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ================================================================== kauditd_printk_skb: 49023 callbacks suppressed audit: type=1326 audit(1631684848.873:69751): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=system_u:system_r:kernel_t:s0 pid=26748 comm=20793CFC3C44624FE5C353EF7ED58A exe="/root/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4665f9 code=0x50000 audit: type=1326 audit(1631684848.913:69752): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=system_u:system_r:kernel_t:s0 pid=26748 comm=20793CFC3C44624FE5C353EF7ED58A exe="/root/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4665f9 code=0x50000 audit: type=1326 audit(1631684848.913:69753): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=system_u:system_r:kernel_t:s0 pid=26748 comm=20793CFC3C44624FE5C353EF7ED58A exe="/root/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4665f9 code=0x50000 audit: type=1326 audit(1631684848.913:69754): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=system_u:system_r:kernel_t:s0 pid=26748 comm=20793CFC3C44624FE5C353EF7ED58A exe="/root/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4665f9 code=0x50000 audit: type=1326 audit(1631684848.913:69755): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=system_u:system_r:kernel_t:s0 pid=26748 comm=20793CFC3C44624FE5C353EF7ED58A exe="/root/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4665f9 code=0x50000 audit: type=1326 audit(1631684848.913:69756): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=system_u:system_r:kernel_t:s0 pid=26748 comm=20793CFC3C44624FE5C353EF7ED58A exe="/root/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4665f9 code=0x50000 audit: type=1326 audit(1631684848.913:69757): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=system_u:system_r:kernel_t:s0 pid=26748 comm=20793CFC3C44624FE5C353EF7ED58A exe="/root/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4665f9 code=0x50000 audit: type=1326 audit(1631684848.913:69758): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=system_u:system_r:kernel_t:s0 pid=26748 comm=20793CFC3C44624FE5C353EF7ED58A exe="/root/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4665f9 code=0x50000 audit: type=1326 audit(1631684848.913:69759): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=system_u:system_r:kernel_t:s0 pid=26748 comm=20793CFC3C44624FE5C353EF7ED58A exe="/root/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4665f9 code=0x50000 audit: type=1326 audit(1631684848.913:69760): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=system_u:system_r:kernel_t:s0 pid=26748 comm=20793CFC3C44624FE5C353EF7ED58A exe="/root/syz-executor.0" sig=0 arch=c000003e syscall=202 compat=0 ip=0x4665f9 code=0x50000 ================================================================== BUG: KCSAN: data-race in kauditd_thread / skb_queue_tail write to 0xffffffff84168b48 of 4 bytes by task 26811 on cpu 0: __skb_insert include/linux/skbuff.h:1943 [inline] __skb_queue_before include/linux/skbuff.h:2048 [inline] __skb_queue_tail include/linux/skbuff.h:2081 [inline] skb_queue_tail+0x80/0xa0 net/core/skbuff.c:3310 audit_log_end+0x171/0x1e0 kernel/audit.c:2389 audit_seccomp+0xd9/0xf0 kernel/auditsc.c:2684 seccomp_log kernel/seccomp.c:985 [inline] __seccomp_filter+0xdf5/0xe40 kernel/seccomp.c:1281 __secure_computing+0xfb/0x140 kernel/seccomp.c:1311 syscall_trace_enter+0x120/0x290 kernel/entry/common.c:68 __syscall_enter_from_user_work kernel/entry/common.c:90 [inline] syscall_enter_from_user_mode+0x1c/0x20 kernel/entry/common.c:108 do_syscall_64+0x25/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffffffff84168b48 of 4 bytes by task 22 on cpu 1: skb_queue_len include/linux/skbuff.h:1874 [inline] kauditd_thread+0x612/0x6e0 kernel/audit.c:881 kthread+0x262/0x280 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 value changed: 0x00000001 -> 0x00000002 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 22 Comm: kauditd Not tainted 5.15.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================