cve-2024-43864
Vulnerability from cvelistv5
Published
2024-08-20 23:45
Modified
2024-12-19 09:17
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix CT entry update leaks of modify header context The cited commit allocates a new modify header to replace the old one when updating CT entry. But if failed to allocate a new one, eg. exceed the max number firmware can support, modify header will be an error pointer that will trigger a panic when deallocating it. And the old modify header point is copied to old attr. When the old attr is freed, the old modify header is lost. Fix it by restoring the old attr to attr when failed to allocate a new modify header context. So when the CT entry is freed, the right modify header context will be freed. And the panic of accessing error pointer is also fixed.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/025f2b85a5e5a46df14ecf162c3c80a957a36d0b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/89064d09c56b44c668509bf793c410484f63f5ad
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/daab2cc17b6b6ab158566bba037e9551fd432b59
Impacted products
Vendor Product Version
Linux Linux Version: 94ceffb48eac7692677d8093dcde6965b70c4b35
Version: 94ceffb48eac7692677d8093dcde6965b70c4b35
Version: 94ceffb48eac7692677d8093dcde6965b70c4b35
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   Linux Linux Version: 6.3
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