CVE-2024-46754
In the Linux kernel, the following vulnerability has been resolved: bpf: Remove tst_run from…
- Risk score
- 51/100
- CVSS
- 5.5 v3.1
- Exploit chance (30 days)
- 0.2%
- Published
- 18 Sep 2024
Open in the live forecast Today's forecast
What to know
- What it is
- In the Linux kernel, the following vulnerability has been resolved: bpf: Remove tst_run from lwt_seg6local_prog_ops. The syzbot reported that the lwt_seg6 related BPF ops can be invoked via bpf_test_run() without without entering input_action_end_bpf() first. Martin KaFai Lau said that self test for BPF_PROG_TYPE_LWT_…
- Affected
- Linux kernel
- Fix
- Apply the vendor's security update; see the linked advisory.
- 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-2024-46754: In the Linux kernel, the following vulnerability has been resolved: bpf: Remove tst_run from… (CVSS 5.5 · 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: Out-of-bounds write (CWE-787). 365 other warnings in 30 days
- Same product: Earlier Linux kernel warnings. 105 in the last 90 days
Why it is Yellow
- CVSS 5.5 medium
- 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/9cd15511de7c619bbd0f54bb3f28e6e720ded5d6
- https://git.kernel.org/stable/c/a675524cfbe88fd49c05ff8807a08646983e687c
- https://git.kernel.org/stable/c/b05c2e25a5c168dbb46b6f7fcb741fd4e4f3b54a
- https://git.kernel.org/stable/c/c13fda93aca118b8e5cd202e339046728ee7dddb
- https://git.kernel.org/stable/c/e217492f6fa2228ad703ee3006d8fc4e5969fbd4
- https://git.kernel.org/stable/c/ea3fae6984ba0f054550e4da22219489c12cd8d4
Original description
In the Linux kernel, the following vulnerability has been resolved: bpf: Remove tst_run from lwt_seg6local_prog_ops. The syzbot reported that the lwt_seg6 related BPF ops can be invoked via bpf_test_run() without without entering input_action_end_bpf() first. Martin KaFai Lau said that self test for BPF_PROG_TYPE_LWT_SEG6LOCAL probably didn't work since it was introduced in commit 04d4b274e2a ("ipv6: sr: Add seg6local action End.BPF"). The reason is that the per-CPU variable seg6_bpf_srh_states::srh is never assigned in the self test case but each BPF function expects it. Remove test_run for BPF_PROG_TYPE_LWT_SEG6LOCAL.
Last activity 3 Nov 2026. Patch Forecast updates every hour.