Description
In the Linux kernel, the following vulnerability has been resolved: fs: init flags_valid before calling vfs_fileattr_get syzbot reported a uninit-value bug in [1]. Similar to the "*get" context where the kernel's internal file_kattr structure is initialized before calling vfs_fileattr_get(), we should use the same mechanism when using fa. [1] BUG: KMSAN: uninit-value in fuse_fileattr_get+0xeb4/0x1450 fs/fuse/ioctl.c:517 fuse_fileattr_get+0xeb4/0x1450 fs/fuse/ioctl.c:517 vfs_fileattr_get fs/file_attr.c:94 [inline] __do_sys_file_getattr fs/file_attr.c:416 [inline] Local variable fa.i created at: __do_sys_file_getattr fs/file_attr.c:380 [inline] __se_sys_file_getattr+0x8c/0xbd0 fs/file_attr.c:372
Product status
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 379e19e820dd1c6145426b97467728b3b89c0b42
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before b8c182b2c8c44c6016b11d8af61715ad7ef958a1
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before cb184dd19154fc486fa3d9e02afe70a97e54e055
6.18.19 (semver)
6.19.9 (semver)
7.0 (original_commit_for_fix)
References
git.kernel.org/...c/379e19e820dd1c6145426b97467728b3b89c0b42
git.kernel.org/...c/b8c182b2c8c44c6016b11d8af61715ad7ef958a1
git.kernel.org/...c/cb184dd19154fc486fa3d9e02afe70a97e54e055