mmc: core: Fix kernel panic when remove non-standard SDIO card
Priority LOW 22Published · Updated
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 5 fixed, 4 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
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().
Why it matters now
EPSS 0.0021 11th percentileScored 2026-11-07
Fix Partial Linux (Linux): 4.9.332, 4.14.298, 4.19.264 +5Red Hat: 1 advisoryRed Hat: 5 fixed, 4 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 2.6.36 and later | 4.9.332, 4.14.298, 4.19.264, 5.4.223, 5.10.153, 5.15.77, 6.0.7, 6.1 | Patch available | CNA |
- Linux VendorLinux Affected 2.6.36 and later Fixed in 4.9.332, 4.14.298, 4.19.264, 5.4.223, 5.10.153, 5.15.77, 6.0.7, 6.1 Patch available CNA
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.9.332, 4.14.298, 4.19.264, 5.4.223, 5.10.153, 5.15.77, 6.0.7, 6.1
Red Hat 1 advisory
- RHSA-2024:9315 Released 2024-11-12 · Red Hat rating Moderatekernel security update
- Red Hat CodeReady Linux Builder (v. 9) kernel-cross-headers-5.14.0-503.11.1.el9_5, kernel-tools-libs-devel-5.14.0-503.11.1.el9_5, libperf-5.14.0-503.11.1.el9_5
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-503.11.1.el9_5, kernel-64k-debug-devel-matched-5.14.0-503.11.1.el9_5, kernel-64k-devel-5.14.0-503.11.1.el9_5 +12
- Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.4.0-503.11.1.el9_5, kernel-5.14.0-503.11.1.el9_5, kernel-64k-5.14.0-503.11.1.el9_5 +30
- Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-503.11.1.el9_5, kernel-rt-core-5.14.0-503.11.1.el9_5, kernel-rt-debug-5.14.0-503.11.1.el9_5 +9
- Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-503.11.1.el9_5, kernel-rt-core-5.14.0-503.11.1.el9_5, kernel-rt-debug-5.14.0-503.11.1.el9_5 +11
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix yet |
| Red Hat Enterprise Linux 8 | Affected | No fix yet |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
| Red Hat CodeReady Linux Builder (v. 9) | Fixed | RHSA-2024:9315 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:9315 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2024:9315 |
| Red Hat Enterprise Linux Real Time (v. 9) | Fixed | RHSA-2024:9315 |
| Red Hat Enterprise Linux Real Time for NFV (v. 9) | Fixed | RHSA-2024:9315 |
Not affected: 3 products
- Red Hat CodeReady Linux Builder (v. 9)
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux AppStream (v. 9)
Timeline
- 2026-10-02 Threatist record created from CVE-2022-50640
- 2026-10-03 Alias added: GHSA-4w99-c287-2jvj
References
Other 8
- https://git.kernel.org/stable/c/b8b2965932e702b21e335ff30e1bb550f5a23b6f
- https://git.kernel.org/stable/c/b3275dde570b6420106a715bb58a0af041b94d95
- https://git.kernel.org/stable/c/1fb79478695d92bab1c120ad3dad05252b02a29d
- https://git.kernel.org/stable/c/7a09c64b7da0abdec3919812e3d93ecc44069ed0
- https://git.kernel.org/stable/c/8bf037279b5869ae9331c42bb1527d2680ebba96
- https://git.kernel.org/stable/c/1e8cd93ae536581562bab4e1d8c5315bbc2548bf
- https://git.kernel.org/stable/c/66d461a92f32b6995b630625d350259b6b1f961b
- https://git.kernel.org/stable/c/9972e6b404884adae9eec7463e30d9b3c9a70b18
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Sources
- CVE-2022-50640 · CVE Program
- CVE-2022-50640 · NVD
- FIRST EPSS
- GHSA-4w99-c287-2jvj · GitHub Advisory Database · CC BY 4.0
- CVE-2022-50640 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences