CVE-2026-98213

Summary

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

VendorProductVersion RangeStatus
LinuxLinux682696605c7093d2800c498c04166831e5aedf87 < bae1cf4f9902b2065bd78b759c7fe6312855f05eaffected
LinuxLinux682696605c7093d2800c498c04166831e5aedf87 < 0bf3d168a2cc20b120d6b50f0a8ac5b40ff4d589affected
LinuxLinux682696605c7093d2800c498c04166831e5aedf87 < 1d6e7315ee1c992b4ca42c9b11c5ed0e925a00e0affected
LinuxLinux682696605c7093d2800c498c04166831e5aedf87 < 4553b5004eca9c9eae29a421f1a9c4d5db2c9114affected
LinuxLinux682696605c7093d2800c498c04166831e5aedf87 < 2a863458828ade0671c2bc2e469bbd7f2340eb03affected
LinuxLinux682696605c7093d2800c498c04166831e5aedf87 < 6feadbecdae60a6324c967f3b1493741083793a3affected
LinuxLinux4.13affected
LinuxLinux0 < 4.13unaffected
LinuxLinux6.1.189 <= 6.1.*unaffected
LinuxLinux6.6.158 <= 6.6.*unaffected
LinuxLinux6.12.112 <= 6.12.*unaffected
LinuxLinux6.18.54 <= 6.18.*unaffected
LinuxLinux7.2.8 <= 7.2.*unaffected
LinuxLinux7.3-rc4 <= *unaffected

Weaknesses

References