Description
In the Linux kernel, the following vulnerability has been resolved: s390/cio: Ensure the copied buf is NUL terminated Currently, we allocate a lbuf-sized kernel buffer and copy lbuf from userspace to that buffer. Later, we use scanf on this buffer but we don't ensure that the string is terminated inside the buffer, this can lead to OOB read when using scanf. Fix this issue by using memdup_user_nul instead.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
a4f17cc726712a52122ad38540bc3ff3a052d1a4 to < c9d48ce163305595ae20aee27774192476d5e6a5affecteda4f17cc726712a52122ad38540bc3ff3a052d1a4 to < 10452edd175fcc4fd0f5ac782ed2a002e3e5d65caffecteda4f17cc726712a52122ad38540bc3ff3a052d1a4 to < 84b38f48836662c4bfae646c014f4e981e16a2b2affecteda4f17cc726712a52122ad38540bc3ff3a052d1a4 to < 06759ebaf75c19c87b2453a5e130e9e61e9b5d65affecteda4f17cc726712a52122ad38540bc3ff3a052d1a4 to < da7c622cddd4fe36be69ca61e8c42e43cde94784affected
Linux Linux
Default version status: affected
5.13affected0 to < 5.13unaffected5.15.159 to ≤ 5.15.*unaffected6.1.91 to ≤ 6.1.*unaffected6.6.31 to ≤ 6.6.*unaffected6.8.10 to ≤ 6.8.*unaffected6.9 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/c9d48ce163305595ae20aee27774192476d5e6a5 ↗
- https://git.kernel.org/stable/c/10452edd175fcc4fd0f5ac782ed2a002e3e5d65c ↗
- https://git.kernel.org/stable/c/84b38f48836662c4bfae646c014f4e981e16a2b2 ↗
- https://git.kernel.org/stable/c/06759ebaf75c19c87b2453a5e130e9e61e9b5d65 ↗
- https://git.kernel.org/stable/c/da7c622cddd4fe36be69ca61e8c42e43cde94784 ↗