CVE-2022-50353
mmc: wmt-sdmmc: fix return value check of mmc_add_host()
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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: mmc: wmt-sdmmc: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, the memory that allocated in mmc_alloc_host() will be leaked and it will lead a kernel crash because of deleting not added device in the remove path. So fix this by checking the return value and goto error path which will call mmc_free_host(), besides, clk_disable_unprepare() also needs be called.
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
3.8
References 8
git.kernel.org
- stable/c/70b0620afab3c69d95a7e2dd7ceff162a21c4009
- stable/c/ecd6f77af3478f5223aa4011642a891b7dc91228
- stable/c/c7a328cea791cc2769b6417943939420913b4a46
- stable/c/9bedf64dda84b29151e41591d8ded9ff0e6d336a
- stable/c/58c3a8d0f1abeb1ca5c2df948be58ad4f7bb6f67
- stable/c/b40ac3b696a9c84b36211ef0c3f5a422650c101b
- stable/c/eb7a2d516d4fbd165c07877a20feccb047342b1f
- stable/c/29276d56f6ed138db0f38cd31aedc0b725c8c76c