CVE-2021-29154

    Dashboard / Vulnerabilities / CVE-2021-29154

    CVE-2021-29154

    Published: 8 Apr 2021Last Modified: 16 Apr 2026

    Summary:

    Details: BPF JIT compilers in the Linux kernel through 5.11.12 have incorrect computation of branch displacements, allowing them to execute arbitrary code within the kernel context. This affects arch/x86/net/bpf_jit_comp.c and arch/x86/net/bpf_jit_comp32.c.

    References: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e4d4d456436bfb2fe412ee2cd489f7658449b098, https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=26f55a59dc65ff77cd1c4b37991e26497fc68049, https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W5YFGIIF24475A2LNW3UWHW2SNCS3G7M/, http://packetstormsecurity.com/files/162434/Kernel-Live-Patch-Security-Notice-LSN-0076-1.html, https://security.netapp.com/advisory/ntap-20210604-0006/, https://www.oracle.com/security-alerts/cpujul2022.html, https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html, https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html, https://news.ycombinator.com/item?id=26757760, https://www.openwall.com/lists/oss-security/2021/04/08/1

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2021-29154 | CVE-DB