Vulnerability Details CVE-2024-47676
In the Linux kernel, the following vulnerability has been resolved:
mm/hugetlb.c: fix UAF of vma in hugetlb fault pathway
Syzbot reports a UAF in hugetlb_fault(). This happens because
vmf_anon_prepare() could drop the per-VMA lock and allow the current VMA
to be freed before hugetlb_vma_unlock_read() is called.
We can fix this by using a modified version of vmf_anon_prepare() that
doesn't release the VMA lock on failure, and then release it ourselves
after hugetlb_vma_unlock_read().
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 3.1%
CVSS Severity
CVSS v3 Score 7.8
References
Products affected by CVE-2024-47676
-
cpe:2.3:o:linux:linux_kernel:6.10
-
cpe:2.3:o:linux:linux_kernel:6.10.0
-
cpe:2.3:o:linux:linux_kernel:6.10.1
-
cpe:2.3:o:linux:linux_kernel:6.10.10
-
cpe:2.3:o:linux:linux_kernel:6.10.11
-
cpe:2.3:o:linux:linux_kernel:6.10.12
-
cpe:2.3:o:linux:linux_kernel:6.10.2
-
cpe:2.3:o:linux:linux_kernel:6.10.3
-
cpe:2.3:o:linux:linux_kernel:6.10.4
-
cpe:2.3:o:linux:linux_kernel:6.10.5
-
cpe:2.3:o:linux:linux_kernel:6.10.6
-
cpe:2.3:o:linux:linux_kernel:6.10.7
-
cpe:2.3:o:linux:linux_kernel:6.10.8
-
cpe:2.3:o:linux:linux_kernel:6.10.9
-
cpe:2.3:o:linux:linux_kernel:6.11
-
cpe:2.3:o:linux:linux_kernel:6.11.1
-
cpe:2.3:o:linux:linux_kernel:6.9
-
cpe:2.3:o:linux:linux_kernel:6.9.1
-
cpe:2.3:o:linux:linux_kernel:6.9.10
-
cpe:2.3:o:linux:linux_kernel:6.9.11
-
cpe:2.3:o:linux:linux_kernel:6.9.12
-
cpe:2.3:o:linux:linux_kernel:6.9.2
-
cpe:2.3:o:linux:linux_kernel:6.9.3
-
cpe:2.3:o:linux:linux_kernel:6.9.4
-
cpe:2.3:o:linux:linux_kernel:6.9.5
-
cpe:2.3:o:linux:linux_kernel:6.9.6
-
cpe:2.3:o:linux:linux_kernel:6.9.7
-
cpe:2.3:o:linux:linux_kernel:6.9.8
-
cpe:2.3:o:linux:linux_kernel:6.9.9