CVE-2024-41055

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Source
https://cve.org/CVERecord?id=CVE-2024-41055
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-41055.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-41055
Downstream
Related
Published
2024-07-29T14:32:10.672Z
Modified
2026-03-13T07:57:16.416940Z
Summary
mm: prevent derefencing NULL ptr in pfn_section_valid()
Details

In the Linux kernel, the following vulnerability has been resolved:

mm: prevent derefencing NULL ptr in pfnsectionvalid()

Commit 5ec8e8ea8b77 ("mm/sparsemem: fix race in accessing memorysection->usage") changed pfnsectionvalid() to add a READONCE() call around "ms->usage" to fix a race with sectiondeactivate() where ms->usage can be cleared. The READONCE() call, by itself, is not enough to prevent NULL pointer dereference. We need to check its value before dereferencing it.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/41xxx/CVE-2024-41055.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
90ad17575d26874287271127d43ef3c2af876cea
Fixed
0100aeb8a12d51950418e685f879cc80cb8e5982
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
b448de2459b6d62a53892487ab18b7d823ff0529
Fixed
bc17f2377818dca643a74499c3f5333500c90503
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
68ed9e33324021e9d6b798e9db00ca3093d2012a
Fixed
941e816185661bf2b44b488565d09444ae316509
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
70064241f2229f7ba7b9599a98f68d9142e81a97
Fixed
797323d1cf92d09b7a017cfec576d9babf99cde7
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
5ec8e8ea8b7783fab150cf86404fc38cb4db8800
Fixed
adccdf702b4ea913ded5ff512239e382d7473b63
Fixed
82f0b6f041fad768c28b4ad05a683065412c226e
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
3a01daace71b521563c38bbbf874e14c3e58adb7

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-41055.json"