UBUNTU-CVE-2025-37908
In the Linux kernel, the following vulnerability has been resolved: mm, slab: clean up slab->obj_exts always When memory allocation profiling is disabled at runtime or due to an error, shutdown_mem_profiling() is called: slab->obj_exts which previously allocated remains. It won't be cleared by unaccount_slab() because of mem_alloc_profiling_enabled() not true. It's incorrect, slab->obj_exts should always be cleaned up in unaccount_slab() to avoid following error: [...]BUG: Bad page state in process... .. [...]page dumped because: page still charged to cgroup [[email protected]: fold need_slab_obj_ext() into its only user]
02 / AFFECTED SOFTWARE
Affected packages
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13 explicit affected versions
43 explicit affected versions
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14 explicit affected versions
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78 explicit affected versions
11 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: mm, slab: clean up slab->obj_exts always When memory allocation profiling is disabled at runtime or due to an error, shutdown_mem_profiling() is called: slab->obj_exts which previously allocated remains. It won't be cleared by unaccount_slab() because of mem_alloc_profiling_enabled() not true. It's incorrect, slab->obj_exts should always be cleaned up in unaccount_slab() to avoid following error: [...]BUG: Bad page state in process... .. [...]page dumped because: page still charged to cgroup [[email protected]: fold need_slab_obj_ext() into its only user]
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/be8250786ca94952a19ce87f98ad9906448bc9ef
- https://git.kernel.org/stable/c/01db0e1a48345aa1937f3bdfc7c7108d03ebcf7e
- https://git.kernel.org/stable/c/be8250786ca94952a19ce87f98ad9906448bc9ef
- https://git.kernel.org/stable/c/dab2a13059a475b6392550f882276e170fe2fcff
- https://ubuntu.com/security/CVE-2025-37908
- https://ubuntu.com/security/notices/USN-7649-1
- https://ubuntu.com/security/notices/USN-7649-2
- https://ubuntu.com/security/notices/USN-7650-1
- https://ubuntu.com/security/notices/USN-7665-1
- https://ubuntu.com/security/notices/USN-7665-2
- https://ubuntu.com/security/notices/USN-7721-1
- https://www.cve.org/CVERecord?id=CVE-2025-37908