CVE-2024-39484

Summary

In the Linux kernel, the following vulnerability has been resolved:

mmc: davinci: Don't strip remove function when driver is builtin

Using __exit for the remove function results in the remove callback being discarded with CONFIG_MMC_DAVINCI=y. When such a device gets unbound (e.g. using sysfs or hotplug), the driver is just removed without the cleanup being performed. This results in resource leaks. Fix it by compiling in the remove callback unconditionally.

This also fixes a W=1 modpost warning:

WARNING: modpost: drivers/mmc/host/davinci_mmc: section mismatch in reference: davinci_mmcsd_driver+0x10 (section: .data) -> davinci_mmcsd_remove (section: .exit.text)

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxb4cff4549b7a8c5fc8b88e3493b6287555f0512c < 6ff7cfa02baabec907f6f29ea76634e6256d2ec4affected
LinuxLinuxb4cff4549b7a8c5fc8b88e3493b6287555f0512c < aea35157bb9b825faa0432bd0f7fbea37ff39aa1affected
LinuxLinuxb4cff4549b7a8c5fc8b88e3493b6287555f0512c < 5ee241f72edc6dce5051a5f100eab6cc019d873eaffected
LinuxLinuxb4cff4549b7a8c5fc8b88e3493b6287555f0512c < 7590da4c04dd4aa9c262da0231e978263861c6ebaffected
LinuxLinuxb4cff4549b7a8c5fc8b88e3493b6287555f0512c < 1d5ed0efe51d36b9ae9b64f133bf41cdbf56f584affected
LinuxLinuxb4cff4549b7a8c5fc8b88e3493b6287555f0512c < 55c421b364482b61c4c45313a535e61ed5ae4ea3affected
LinuxLinux2.6.33affected
LinuxLinux0 < 2.6.33unaffected
LinuxLinux5.10.221 <= 5.10.*unaffected
LinuxLinux5.15.162 <= 5.15.*unaffected
LinuxLinux6.1.95 <= 6.1.*unaffected
LinuxLinux6.6.34 <= 6.6.*unaffected
LinuxLinux6.9.5 <= 6.9.*unaffected
LinuxLinux6.10 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References