CVE-2023-53380
md/raid10: fix null-ptr-deref of mreplace in raid10_sync_request
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: partial
Summary
In the Linux kernel, the following vulnerability has been resolved: md/raid10: fix null-ptr-deref of mreplace in raid10_sync_request There are two check of 'mreplace' in raid10_sync_request(). In the first check, 'need_replace' will be set and 'mreplace' will be used later if no-Faulty 'mreplace' exists, In the second check, 'mreplace' will be set to NULL if it is Faulty, but 'need_replace' will not be changed accordingly. null-ptr-deref occurs if Faulty is set between two check. Fix it by merging two checks into one. And replace 'need_replace' with 'mreplace' because their values are always the same.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: partial
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
4.20
References 7
git.kernel.org
- stable/c/45fa023b3334a7ae6f6c4eb977295804222dfa28
- stable/c/2990e2ece18dd4cca71b3109c80517ad94adb065
- stable/c/f4368a462b1f9a8ecc2fdb09a28c3d4cad302a4f
- stable/c/222cc459d59857ee28a5366dc225ab42b22f9272
- stable/c/b5015b97adda6a24dd3e713c63e521ecbeff25c6
- stable/c/144c7fd008e0072b0b565f1157eec618de54ca8a
- stable/c/34817a2441747b48e444cb0e05d84e14bc9443da