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CVE-2026-98213

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Last modified

CVE-2026-98213 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: mmc: core: Cancel SDIO IRQ work before freeing host A host controller that uses sdio_signal_irq() schedules host->sdio_irq_work from its interrupt handler. That work is only cancelled on the suspend path (mmc_sdio_suspend()), not on the remove/free path, so a worker armed just before the controller freed its IRQ can run after mmc_host_classdev_release() has freed the host and dereference it through container_of(). Cancel host->sdio_irq_work in mmc_free_host(), like the existing host->detect drain added by commit 1036f69e2513 ("mmc: core: Cancel delayed work before releasing host"). This issue was found by an in-house static analysis tool..

Description

In the Linux kernel, the following vulnerability has been resolved: mmc: core: Cancel SDIO IRQ work before freeing host A host controller that uses sdio_signal_irq() schedules host->sdio_irq_work from its interrupt handler. That work is only cancelled on the suspend path (mmc_sdio_suspend()), not on the remove/free path, so a worker armed just before the controller freed its IRQ can run after mmc_host_classdev_release() has freed the host and dereference it through container_of(). Cancel host->sdio_irq_work in mmc_free_host(), like the existing host->detect drain added by commit 1036f69e2513 ("mmc: core: Cancel delayed work before releasing host"). This issue was found by an in-house static analysis tool.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 682696605c7093d2800c498c04166831e5aedf87, < bae1cf4f9902b2065bd78b759c7fe6312855f05e; >= 682696605c7093d2800c498c04166831e5aedf87, < 0bf3d168a2cc20b120d6b50f0a8ac5b40ff4d589; >= 682696605c7093d2800c498c04166831e5aedf87, < 1d6e7315ee1c992b4ca42c9b11c5ed0e925a00e0; >= 682696605c7093d2800c498c04166831e5aedf87, < 4553b5004eca9c9eae29a421f1a9c4d5db2c9114; >= 682696605c7093d2800c498c04166831e5aedf87, < 2a863458828ade0671c2bc2e469bbd7f2340eb03; >= 682696605c7093d2800c498c04166831e5aedf87, < 6feadbecdae60a6324c967f3b1493741083793a3
LinuxLinux4.13

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-98213?
In the Linux kernel, the following vulnerability has been resolved: mmc: core: Cancel SDIO IRQ work before freeing host A host controller that uses sdio_signal_irq() schedules host->sdio_irq_work from its interrupt handler. That work is only cancelled on the suspend path (mmc_sdio_suspend()), not on the remove/free path, so a worker armed just before the controller freed its IRQ can run after mmc_host_classdev_release() has freed the host and dereference it through container_of(). Cancel host->sdio_irq_work in mmc_free_host(), like the existing host->detect drain added by commit 1036f69e2513 ("mmc: core: Cancel delayed work before releasing host"). This issue was found by an in-house static analysis tool.
How severe is CVE-2026-98213?
Severity scoring for CVE-2026-98213 is pending analysis.
How do I fix CVE-2026-98213?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST