CVE-2022-49359
Linux kernel: use-after-free
- Risk score
- 66/100
- CVSS
- 7.8 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 26 Feb 2025
Open in the live forecast Today's forecast
What to know
- What it is
- A vulnerability in the Linux kernel's drm/panfrost module allows a use-after-free error, which can be triggered by an attacker, resulting in a system crash. This vulnerability is considered high-severity.
- Affected
- {'product': 'Linux kernel', 'vendor': 'Linux'}
- Fix
- Check the linked advisory for a fix, as none is provided in the record.
- Exploitation
- No known exploitation
Story map
At a glance
Linux kernel: Amber, patch this week. In the Linux kernel, the following vulnerability has been resolved: ipv6: sr: restore network header before routing and forwarding ipv6_srh_rcv() runs with skb->data at the Segment Routing Header (SRH) while skb_network_header() points at the IPv6 header. When segments_left > 0, ipv6_srh_rcv() previously restored the …
The flaws
- CVE-2022-49359: Use-after-free (CVSS 7.8 · EPSS 0%)
- CVE-2026-98096: Out-of-bounds write (CVSS 7.4 · EPSS 1%)
- CVE-2026-98115: Race condition (CVSS 8.8 · EPSS 0%)
- CVE-2026-98117: Use-after-free (CVSS 7.8 · EPSS 0%)
The fix
Fix: Apply the vendor's security update; see the linked advisory.
Who is exposed: Linux kernel
Where it stands
- No known exploitation
How it unfolded
- 3 Nov, Ubuntu security notices (official): USN-8962-1: Linux kernel (Azure CVM) vulnerabilities
- 3 Nov, Ubuntu security notices (official): USN-8963-1: Linux kernel (NVIDIA Tegra) vulnerabilities
- 3 Nov, Ubuntu security notices (official): USN-8961-1: Linux kernel vulnerabilities
Connects to
- Same weakness: Use-after-free (CWE-416). 399 other warnings in 30 days
- Same product: Earlier Linux kernel warnings. 105 in the last 90 days
Why it is Amber
- CVSS 7.8 high
- On your watchlist: linux kernel
- Named in a government or vendor bulletin
Government and vendor bulletins
References
- https://ubuntu.com/security/notices/USN-8961-1
- https://ubuntu.com/security/notices/USN-8963-1
- https://ubuntu.com/security/notices/USN-8962-1
- https://git.kernel.org/stable/c/472dd7ea5e19a1aeabf1711ddc756777e05ee7c2
- https://git.kernel.org/stable/c/6e516faf04317db2c46cbec4e3b78b4653a5b109
- https://git.kernel.org/stable/c/8c8e8cc91a6ffc79865108279a74fd57d9070a17
Original description
In the Linux kernel, the following vulnerability has been resolved: drm/panfrost: Job should reference MMU not file_priv For a while now it's been allowed for a MMU context to outlive it's corresponding panfrost_priv, however the job structure still references panfrost_priv to get hold of the MMU context. If panfrost_priv has been freed this is a use-after-free which I've been able to trigger resulting in a splat. To fix this, drop the reference to panfrost_priv in the job structure and add a direct reference to the MMU structure which is what's actually needed.
Last activity 3 Nov 2026. Patch Forecast updates every hour.