KCSAN: data-race in inode_doinit_with_dentry / inode_doinit_with

Kernel	Title	Rank 🛈	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in inode_doinit_with_dentry / inode_doinit_with_dentry (4) selinux	6	2	431d	483d	0/29	auto-obsoleted due to no activity on 2025/08/23 22:33
upstream	KCSAN: data-race in inode_doinit_with_dentry / inode_doinit_with_dentry (2) selinux	6	1	864d	864d	0/29	auto-obsoleted due to no activity on 2024/05/26 16:52
upstream	KCSAN: data-race in inode_doinit_with_dentry / inode_doinit_with_dentry (5) selinux	6	1	253d	253d	0/29	auto-obsoleted due to no activity on 2026/02/18 00:11
upstream	KCSAN: data-race in inode_doinit_with_dentry / inode_doinit_with_dentry (3) selinux	6	1	588d	588d	0/29	auto-obsoleted due to no activity on 2025/03/19 10:00

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BUG: KCSAN: data-race in inode_doinit_with_dentry / inode_doinit_with_dentry

write to 0xffff888139ac3dc2 of 1 bytes by task 4536 on cpu 0:
 inode_doinit_with_dentry+0x807/0x840 security/selinux/hooks.c:1526
 __inode_security_revalidate security/selinux/hooks.c:270 [inline]
 inode_security security/selinux/hooks.c:295 [inline]
 selinux_file_permission+0x179/0x350 security/selinux/hooks.c:3603
 security_file_permission+0x3f/0x70 security/security.c:1590
 vfs_fallocate+0x20a/0x3d0 fs/open.c:303
 madvise_remove mm/madvise.c:1001 [inline]
 madvise_vma_behavior mm/madvise.c:1025 [inline]
 madvise_walk_vmas mm/madvise.c:1260 [inline]
 do_madvise+0x77b/0x28a0 mm/madvise.c:1439
 __do_sys_madvise mm/madvise.c:1452 [inline]
 __se_sys_madvise mm/madvise.c:1450 [inline]
 __x64_sys_madvise+0x60/0x70 mm/madvise.c:1450
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffff888139ac3dc2 of 1 bytes by task 4544 on cpu 1:
 inode_doinit_with_dentry+0x77/0x840 security/selinux/hooks.c:1378
 __inode_security_revalidate security/selinux/hooks.c:270 [inline]
 inode_security security/selinux/hooks.c:295 [inline]
 selinux_file_permission+0x179/0x350 security/selinux/hooks.c:3603
 security_file_permission+0x3f/0x70 security/security.c:1590
 vfs_fallocate+0x20a/0x3d0 fs/open.c:303
 madvise_remove mm/madvise.c:1001 [inline]
 madvise_vma_behavior mm/madvise.c:1025 [inline]
 madvise_walk_vmas mm/madvise.c:1260 [inline]
 do_madvise+0x77b/0x28a0 mm/madvise.c:1439
 __do_sys_madvise mm/madvise.c:1452 [inline]
 __se_sys_madvise mm/madvise.c:1450 [inline]
 __x64_sys_madvise+0x60/0x70 mm/madvise.c:1450
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x02 -> 0x01

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 4544 Comm: syz-executor.0 Not tainted 6.3.0-rc7-syzkaller-00191-g622322f53c6d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
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