firmware: arm_ffa: Fix NULL dereference in ffa_partition_info_get()
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Fix NULL dereference in ffa_partition_info_get() ffa_partition_info_get() passes uuid_str directly to uuid_parse() without a NULL check. When a caller passes NULL, uuid_parse() -> __uuid_parse() -> uuid_is_valid() dereferences the pointer, causing a kernel panic: | Unable to handle kernel NULL pointer dereference at virtual address | 0000000000000040 | pc : uuid_parse+0x40/0xac | lr : ffa_partition_info_get+0x1c/0x94 [arm_ffa] Add a NULL guard before uuid_parse() so a NULL argument returns -ENODEV instead of crashing. Callers are expected to always supply a valid partition UUID, so NULL is not a supported input.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
5.14
References 7
git.kernel.org
- stable/c/7dfb020e3048411fbca91e9ad6174da9a2d3e2b3
- stable/c/ddf85f0c32e05baafbd9c3a44859858db90eec48
- stable/c/86f5ea90f73bb7154593bb96f3411e197f3d4fbe
- stable/c/7201e56e52d18abf4cd0a2fee45daf9dc08b5b97
- stable/c/996c5c19d5b5ac5b98a7b5a406b548305841c301
- stable/c/12a42c610e4432e7708cc48d607e5903fffe0aad
- stable/c/8ae5f8e4836667fcaffdf2e3c6068b0a8b364dd8