Description
In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: prevent infinite loops caused by the next valid being the same When processing valid within the range [valid : pos), if valid cannot be retrieved correctly, for example, if the retrieved valid value is always the same, this can trigger a potential infinite loop, similar to the hung problem reported by syzbot [1]. Adding a check for the valid value within the loop body, and terminating the loop and returning -EINVAL if the value is the same as the current value, can prevent this. [1] INFO: task syz.4.21:6056 blocked for more than 143 seconds. Call Trace: rwbase_write_lock+0x14f/0x750 kernel/locking/rwbase_rt.c:244 inode_lock include/linux/fs.h:1027 [inline] ntfs_file_write_iter+0xe6/0x870 fs/ntfs3/file.c:1284
Product status
4342306f0f0d5ff4315a204d315c1b51b914fca5 (git) before 50c822fcb36768f1fb356f05b02a2248ef81936d
4342306f0f0d5ff4315a204d315c1b51b914fca5 (git) before 6d93239b4fc479f7c0a412dd196ec0ca2672d14a
4342306f0f0d5ff4315a204d315c1b51b914fca5 (git) before 71c8b966ec56e13c02388c1312910588bb49be7a
4342306f0f0d5ff4315a204d315c1b51b914fca5 (git) before b97e371e5d1c13d722335d46eb8bc1a22b272a0e
4342306f0f0d5ff4315a204d315c1b51b914fca5 (git) before 4bf3bafb8e0635ed93e3cd4156dcbcc0fb960cb4
4342306f0f0d5ff4315a204d315c1b51b914fca5 (git) before a47a2bb9aa6455d5cee1045814a60c749309c92b
4342306f0f0d5ff4315a204d315c1b51b914fca5 (git) before 27b75ca4e51e3e4554dc85dbf1a0246c66106fd3
5.15
Any version before 5.15
5.15.202 (semver)
6.1.165 (semver)
6.6.128 (semver)
6.12.75 (semver)
6.18.14 (semver)
6.19.4 (semver)
7.0 (original_commit_for_fix)
References
git.kernel.org/...c/50c822fcb36768f1fb356f05b02a2248ef81936d
git.kernel.org/...c/6d93239b4fc479f7c0a412dd196ec0ca2672d14a
git.kernel.org/...c/71c8b966ec56e13c02388c1312910588bb49be7a
git.kernel.org/...c/b97e371e5d1c13d722335d46eb8bc1a22b272a0e
git.kernel.org/...c/4bf3bafb8e0635ed93e3cd4156dcbcc0fb960cb4
git.kernel.org/...c/a47a2bb9aa6455d5cee1045814a60c749309c92b
git.kernel.org/...c/27b75ca4e51e3e4554dc85dbf1a0246c66106fd3