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[syzbot] [selinux?] KCSAN: data-race in inode_doinit_with_dentry / selinux_file_open | 0 (1) | 2024/08/23 08:15 |
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[syzbot] [selinux?] KCSAN: data-race in inode_doinit_with_dentry / selinux_file_open | 0 (1) | 2024/08/23 08:15 |
================================================================== BUG: KCSAN: data-race in inode_doinit_with_dentry / selinux_file_open write to 0xffff888114a3392a of 1 bytes by task 5741 on cpu 0: inode_doinit_with_dentry+0x29c/0x840 security/selinux/hooks.c:1443 __inode_security_revalidate security/selinux/hooks.c:295 [inline] inode_security security/selinux/hooks.c:320 [inline] selinux_file_open+0x101/0x3b0 security/selinux/hooks.c:3979 security_file_open+0x3a/0x70 security/security.c:2988 do_dentry_open+0x22e/0xa50 fs/open.c:946 vfs_open+0x3b/0x1f0 fs/open.c:1089 dentry_open+0x4a/0x90 fs/open.c:1112 pidfs_alloc_file+0xe6/0x150 fs/pidfs.c:404 __pidfd_prepare kernel/fork.c:2013 [inline] pidfd_prepare+0xa0/0x120 kernel/fork.c:2074 pidfd_create kernel/pid.c:608 [inline] __do_sys_pidfd_open kernel/pid.c:644 [inline] __se_sys_pidfd_open+0x123/0x240 kernel/pid.c:629 __x64_sys_pidfd_open+0x31/0x40 kernel/pid.c:629 x64_sys_call+0x2873/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:435 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff888114a3392a of 1 bytes by task 5740 on cpu 1: __inode_security_revalidate security/selinux/hooks.c:286 [inline] inode_security security/selinux/hooks.c:320 [inline] selinux_file_open+0xce/0x3b0 security/selinux/hooks.c:3979 security_file_open+0x3a/0x70 security/security.c:2988 do_dentry_open+0x22e/0xa50 fs/open.c:946 vfs_open+0x3b/0x1f0 fs/open.c:1089 dentry_open+0x4a/0x90 fs/open.c:1112 pidfs_alloc_file+0xe6/0x150 fs/pidfs.c:404 __pidfd_prepare kernel/fork.c:2013 [inline] pidfd_prepare+0xa0/0x120 kernel/fork.c:2074 pidfd_create kernel/pid.c:608 [inline] __do_sys_pidfd_open kernel/pid.c:644 [inline] __se_sys_pidfd_open+0x123/0x240 kernel/pid.c:629 __x64_sys_pidfd_open+0x31/0x40 kernel/pid.c:629 x64_sys_call+0x2873/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:435 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x00 -> 0x01 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 5740 Comm: syz.0.725 Not tainted 6.11.0-rc4-syzkaller-00135-gaa0743a22936 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 ================================================================== netlink: 16 bytes leftover after parsing attributes in process `syz.0.725'.
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/08/23 07:01 | upstream | aa0743a22936 | ce8a9099 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in inode_doinit_with_dentry / selinux_file_open |