Vulnerability CVE-2024-39484
Published: 2024-07-05

Description:
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)

 References:
https://git.kernel.org/stable/c/5ee241f72edc6dce5051a5f100eab6cc019d873e
https://git.kernel.org/stable/c/7590da4c04dd4aa9c262da0231e978263861c6eb
https://git.kernel.org/stable/c/1d5ed0efe51d36b9ae9b64f133bf41cdbf56f584
https://git.kernel.org/stable/c/55c421b364482b61c4c45313a535e61ed5ae4ea3
https://git.kernel.org/stable/c/6ff7cfa02baabec907f6f29ea76634e6256d2ec4
https://git.kernel.org/stable/c/aea35157bb9b825faa0432bd0f7fbea37ff39aa1
Copyright 2026, cxsecurity.com

 

Back to Top