CVE-2024-56710: ceph: fix memory leak in ceph_direct_read_write()
First published: Sun Dec 29 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: ceph: fix memory leak in ceph_direct_read_write() The bvecs array which is allocated in iter_get_bvecs_alloc() is leaked and pages remain pinned if ceph_alloc_sparse_ext_map() fails. There is no need to delay the allocation of sparse_ext map until after the bvecs array is set up, so fix this by moving sparse_ext allocation a bit earlier. Also, make a similar adjustment in __ceph_sync_read() for consistency (a leak of the same kind in __ceph_sync_read() has been addressed differently).
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=6.6<6.6.69 | |
| Linux Kernel | >=6.7<6.12.7 | |
| Linux Kernel | =6.13-rc1 | |
| Linux Kernel | =6.13-rc2 | |
| Linux Kernel | =6.13-rc3 | |
| 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 |
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Reference Links
- https://git.kernel.org/stable/c/44e518abbb498075ae85c7d1d1a503a6bb05ea2d
- https://git.kernel.org/stable/c/eb9041837123f31d5897e99bb761f46cb4ce5859
- https://git.kernel.org/stable/c/66e0c4f91461d17d48071695271c824620bed4ef
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-56710
- https://nvd.nist.gov/vuln/detail/CVE-2024-56710
- https://launchpad.net/bugs/cve/CVE-2024-56710
- https://security-tracker.debian.org/tracker/CVE-2024-56710
- https://ubuntu.com/security/CVE-2024-56710
- https://git.kernel.org/linus/66e0c4f91461d17d48071695271c824620bed4ef
Frequently Asked Questions
What is the severity of CVE-2024-56710?
CVE-2024-56710 has been classified as a medium severity vulnerability.
How do I fix CVE-2024-56710?
To fix CVE-2024-56710, update your Linux kernel to the latest stable version that includes the patch.
Which Linux kernel versions are affected by CVE-2024-56710?
CVE-2024-56710 affects Linux kernel versions from 6.7 up to but not including 6.6.69, as well as specific release candidates of version 6.13.
What components are impacted by CVE-2024-56710?
CVE-2024-56710 impacts the ceph component of the Linux kernel.
What types of issues does CVE-2024-56710 address?
CVE-2024-56710 addresses a memory leak issue that occurs during the ceph_direct_read_write() operation.
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