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================================================================== BUG: KCSAN: data-race in do_task_stat / load_elf_binary write to 0xffff88810d040dd8 of 8 bytes by task 8397 on cpu 1: load_elf_binary+0x24cd/0x2790 fs/binfmt_elf.c:1265 search_binary_handler fs/exec.c:1720 [inline] exec_binprm+0x1d9/0x720 fs/exec.c:1761 bprm_execve+0x3b8/0x530 fs/exec.c:1830 do_execveat_common+0x621/0x6e0 fs/exec.c:1919 do_execve fs/exec.c:1987 [inline] __do_sys_execve fs/exec.c:2063 [inline] __se_sys_execve fs/exec.c:2058 [inline] __x64_sys_execve+0x56/0x70 fs/exec.c:2058 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff88810d040dd8 of 8 bytes by task 1 on cpu 0: do_task_stat+0xf24/0x10c0 fs/proc/array.c:633 proc_tgid_stat+0x2f/0x40 fs/proc/array.c:663 proc_single_show+0x84/0x100 fs/proc/base.c:774 seq_read_iter+0x2ef/0x910 fs/seq_file.c:227 seq_read+0x221/0x260 fs/seq_file.c:159 vfs_read+0x154/0x5d0 fs/read_write.c:494 ksys_read+0xce/0x180 fs/read_write.c:634 __do_sys_read fs/read_write.c:644 [inline] __se_sys_read fs/read_write.c:642 [inline] __x64_sys_read+0x3e/0x50 fs/read_write.c:642 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 1 Comm: systemd Not tainted 5.12.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2021/04/09 17:16 | upstream | 17e7124aad76 | 6a81331a | .config | console log | report | info | ci2-upstream-kcsan-gce | KCSAN: data-race in do_task_stat / load_elf_binary |