Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: terminate the cached volume label after UTF-8 conversion ntfs_fill_super() loads the on-disk volume label with utf16s_to_utf8s() and stores the result in sbi->volume.label. The converted label is later exposed through ntfs3_label_show() using %s, but utf16s_to_utf8s() only returns the number of bytes written and does not add a trailing NUL. If the converted label fills the entire fixed buffer, ntfs3_label_show() can read past the end of sbi->volume.label while looking for a terminator. Terminate the cached label explicitly after a successful conversion and clamp the exact-full case to the last byte of the buffer.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 82cae269cfa953032fbb8980a7d554d60fb00b17 before 32b0686369e0afbb3549a0d93e2d8517da84cd30; affected 82cae269cfa953032fbb8980a7d554d60fb00b17 before bc7a0c34c4ca259cfddf3bc18fc5b3c6411d26ed; affected 82cae269cfa953032fbb8980a7d554d60fb00b17 before 0b11fcbe80a59acdf58337d80ebb5f72201d73d6; affected 82cae269cfa953032fbb8980a7d554d60fb00b17 before 54d564b762389679e2f8fb9eeb20af7e82371e1c; affected 82cae269cfa953032fbb8980a7d554d60fb00b17 before 6136bbb054f7ab9f51ae99915541633b18bcef90; affected 82cae269cfa953032fbb8980a7d554d60fb00b17 before 5cd0707b81cb4589f00aec5c4c1288bd0980d2a4; affected 82cae269cfa953032fbb8980a7d554d60fb00b17 before a6cd43fe9b083fa23fe1595666d5738856cb261a |
| Linux / Linux | affected 5.15; unaffected 0 before 5.15; unaffected 5.15.209 through 5.15.*; unaffected 6.1.175 through 6.1.*; unaffected 6.6.141 through 6.6.*; unaffected 6.12.91 through 6.12.*; unaffected 6.18.33 through 6.18.*; unaffected 7.0.10 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/32b0686369e0afbb3549a0d93e2d8517da84cd30
- https://git.kernel.org/stable/c/bc7a0c34c4ca259cfddf3bc18fc5b3c6411d26ed
- https://git.kernel.org/stable/c/0b11fcbe80a59acdf58337d80ebb5f72201d73d6
- https://git.kernel.org/stable/c/54d564b762389679e2f8fb9eeb20af7e82371e1c
- https://git.kernel.org/stable/c/6136bbb054f7ab9f51ae99915541633b18bcef90
- https://git.kernel.org/stable/c/5cd0707b81cb4589f00aec5c4c1288bd0980d2a4
- https://git.kernel.org/stable/c/a6cd43fe9b083fa23fe1595666d5738856cb261a