CVE-2022-50425 — NULL Pointer Dereference in Linux

CWE-476 — NULL Pointer Dereference5 documents5 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 94.52%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedOct 1

Description

In the Linux kernel, the following vulnerability has been resolved: x86/fpu: Fix copy_xstate_to_uabi() to copy init states correctly When an extended state component is not present in fpstate, but in init state, the function copies from init_fpstate via copy_feature(). But, dynamic states are not present in init_fpstate because of all-zeros init states. Then retrieving them from init_fpstate will explode like this: BUG: kernel NULL pointer dereference, address: 0000000000000000 ... RIP: 0010…

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages4 packages

▶NVDlinux/linux_kernel5.16 — 6.0.7+1
▶Debianlinux/linux_kernel< 6.0.7-1+2
▶CVEListV5linux/linux2308ee57d93d896618dd65c996429c9d3e469fe0 — 6ff29642fd28965a8f8d6d326ac91bf6075f3113+2
▶debiandebian/linux< linux 6.0.7-1 (bookworm)

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
GHSA
GHSA-cfcx-rgr2-rqqq: In the Linux kernel, the following vulnerability has been resolved: x86/fpu: Fix copy_xstate_to_uabi() to copy init states correctly When an extende↗2025-10-01
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OSV
CVE-2022-50425: In the Linux kernel, the following vulnerability has been resolved: x86/fpu: Fix copy_xstate_to_uabi() to copy init states correctly When an extended↗2025-10-01
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📋Vendor Advisories

2
Red Hat
kernel: x86/fpu: Fix copy_xstate_to_uabi() to copy init states correctly↗2025-10-01
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Debian
CVE-2022-50425: linux - In the Linux kernel, the following vulnerability has been resolved: x86/fpu: Fi...↗2022
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CVE-2022-50425 — NULL Pointer Dereference in Linux | cvebase