CVE-2024-56748: scsi: qedf: Fix a possible memory leak in qedf_alloc_and_init_sb()
First published: Sun Dec 29 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: scsi: qedf: Fix a possible memory leak in qedf_alloc_and_init_sb() Hook "qed_ops->common->sb_init = qed_sb_init" does not release the DMA memory sb_virt when it fails. Add dma_free_coherent() to free it. This is the same way as qedr_alloc_mem_sb() and qede_alloc_mem_sb().
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=4.11<5.4.287 | |
| Linux Kernel | >=5.5<5.10.231 | |
| Linux Kernel | >=5.11<5.15.174 | |
| Linux Kernel | >=5.16<6.1.120 | |
| Linux Kernel | >=6.2<6.6.64 | |
| Linux Kernel | >=6.7<6.11.11 | |
| Linux Kernel | >=6.12<6.12.2 | |
| debian/linux | <=5.10.223-1 | 5.10.234-1 6.1.129-1 6.1.128-1 6.12.20-1 6.12.21-1 |
| debian/linux-6.1 | 6.1.129-1~deb11u1 |
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Reference Links
- https://git.kernel.org/stable/c/97384449ddfc07f12ca75f510eb070020d7abb34
- https://git.kernel.org/stable/c/a56777a3ef5b35e24a20c4418bcf88bad033807a
- https://git.kernel.org/stable/c/64654bf5efb3f748e6fc41227adda689618ce9c4
- https://git.kernel.org/stable/c/b514f45e0fe18d763a1afc34401b1585333cb329
- https://git.kernel.org/stable/c/7c1832287b21ff68c4e3625e63cc7619edf5908b
- https://git.kernel.org/stable/c/0e04bd5a11dffe8c1c0e4c9fc79f7d3cd6182dd5
- https://git.kernel.org/stable/c/78a169dc69fbdaf114c40e2d56955bf6bd4fc3c0
- https://git.kernel.org/stable/c/c62c30429db3eb4ced35c7fcf6f04a61ce3a01bb
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-56748
- https://nvd.nist.gov/vuln/detail/CVE-2024-56748
- https://launchpad.net/bugs/cve/CVE-2024-56748
- https://security-tracker.debian.org/tracker/CVE-2024-56748
- https://ubuntu.com/security/CVE-2024-56748
- https://git.kernel.org/linus/c62c30429db3eb4ced35c7fcf6f04a61ce3a01bb
Frequently Asked Questions
What is the severity of CVE-2024-56748?
CVE-2024-56748 has a medium severity rating due to the potential for memory leaks in the Linux kernel SCSI subsystem.
How do I fix CVE-2024-56748?
To address CVE-2024-56748, ensure you update your Linux kernel to a version that includes the fix for the memory leak, specifically updating beyond version 6.12.
Which versions of the Linux kernel are affected by CVE-2024-56748?
CVE-2024-56748 affects Linux kernel versions from 4.11 to 6.12, excluding the patched versions.
What is the impact of CVE-2024-56748 on system security?
The impact of CVE-2024-56748 can potentially lead to resource exhaustion through memory leaks, which may degrade system performance or stability.
Is there a known workaround for CVE-2024-56748?
Currently, there are no known workarounds for CVE-2024-56748, and users are advised to apply the kernel update to mitigate the vulnerability.
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