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CVE-2022-50640

mmc: core: Fix kernel panic when remove non-standard SDIO card

N/A
Published: December 9, 2025 at 12:00 AM UTC
Updated: June 17, 2026 at 05:23 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

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().

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
2.6.36 ≤ v < 4.14.2982.6.36 ≤ v < 4.19.2642.6.36 ≤ v < 4.9.3322.6.36 ≤ v < 5.10.1532.6.36 ≤ v < 5.15.772.6.36 ≤ v < 5.4.2232.6.36 ≤ v < 6.0.72.6.36 ≤ v < 6.12.6.366f51be3d37dff73cf8db771df4169f4c2f1cbf66
Vendor states this is fixed in 1e8cd93ae536581562bab4e1d8c5315bbc2548bf (fixed)
Vendor states this is fixed in 1fb79478695d92bab1c120ad3dad05252b02a29d (fixed)
Vendor states this is fixed in 66d461a92f32b6995b630625d350259b6b1f961b (fixed)
Vendor states this is fixed in 7a09c64b7da0abdec3919812e3d93ecc44069ed0 (fixed)
Vendor states this is fixed in 8bf037279b5869ae9331c42bb1527d2680ebba96 (fixed)
Vendor states this is fixed in 9972e6b404884adae9eec7463e30d9b3c9a70b18 (fixed)
Vendor states this is fixed in b3275dde570b6420106a715bb58a0af041b94d95 (fixed)
Vendor states this is fixed in b8b2965932e702b21e335ff30e1bb550f5a23b6f (fixed)
Vendor states this is fixed in 2.6.36 (unaffected)
Vendor states this is fixed in 4.14.298 (unaffected)
Vendor states this is fixed in 4.19.264 (unaffected)
Vendor states this is fixed in 4.9.332 (unaffected)
Vendor states this is fixed in 5.10.153 (unaffected)
Vendor states this is fixed in 5.15.77 (unaffected)
Vendor states this is fixed in 5.4.223 (unaffected)
Vendor states this is fixed in 6.0.7 (unaffected)
Vendor states this is fixed in 6.1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (8)

Source: cverecord
https://git.kernel.org/stable/c/b8b2965932e702b21e335ff30e1bb550f5a23b6f
Source: cverecord
https://git.kernel.org/stable/c/b3275dde570b6420106a715bb58a0af041b94d95
Source: cverecord
https://git.kernel.org/stable/c/1fb79478695d92bab1c120ad3dad05252b02a29d
Source: cverecord
https://git.kernel.org/stable/c/7a09c64b7da0abdec3919812e3d93ecc44069ed0
Source: cverecord
https://git.kernel.org/stable/c/8bf037279b5869ae9331c42bb1527d2680ebba96
Source: cverecord
https://git.kernel.org/stable/c/1e8cd93ae536581562bab4e1d8c5315bbc2548bf
Source: cverecord
https://git.kernel.org/stable/c/66d461a92f32b6995b630625d350259b6b1f961b
Source: cverecord
https://git.kernel.org/stable/c/9972e6b404884adae9eec7463e30d9b3c9a70b18

Quick Info

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