mmc: core: Fix kernel panic when remove non-standard SDIO card
In the Linux kernel, the following vulnerability has been resolved: mmc: core: Fix kernel panic when remove non-standard SDIO card SDIO tuple is only allocated for standard SDIO card, especially it causes memory corruption issues when the non-standard SDIO card has removed, which is because the card device's reference counter does not increase for it at sdio_init_func(), but all SDIO card device reference counter gets decreased at sdio_release_func().
02 / AFFECTED SOFTWARE
Affected packages
1908 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: mmc: core: Fix kernel panic when remove non-standard SDIO card SDIO tuple is only allocated for standard SDIO card, especially it causes memory corruption issues when the non-standard SDIO card has removed, which is because the card device's reference counter does not increase for it at sdio_init_func(), but all SDIO card device reference counter gets decreased at sdio_release_func().
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/1e8cd93ae536581562bab4e1d8c5315bbc2548bf
- https://git.kernel.org/stable/c/1fb79478695d92bab1c120ad3dad05252b02a29d
- https://git.kernel.org/stable/c/66d461a92f32b6995b630625d350259b6b1f961b
- https://git.kernel.org/stable/c/7a09c64b7da0abdec3919812e3d93ecc44069ed0
- https://git.kernel.org/stable/c/8bf037279b5869ae9331c42bb1527d2680ebba96
- https://git.kernel.org/stable/c/9972e6b404884adae9eec7463e30d9b3c9a70b18
- https://git.kernel.org/stable/c/b3275dde570b6420106a715bb58a0af041b94d95
- https://git.kernel.org/stable/c/b8b2965932e702b21e335ff30e1bb550f5a23b6f
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50640.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-50640