CVE-2021-29154
HIGH
7.8
CVSS Score
Published: April 8, 2021 at 12:00 AM UTC
Updated: June 17, 2026 at 03:47 AM UTC
20 products affected across 4 vendorsLinux KernelDebian LinuxFedora
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Severity
HIGH7.8
Exploit prediction
EPSS 0.9%
Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%95%
3.0 ≤ v < 4.4.2664.10 ≤ v < 4.14.2304.15 ≤ v < 4.19.1864.20 ≤ v < 5.4.1114.5 ≤ v < 4.9.2665.11 ≤ v < 5.11.135.5 ≤ v < 5.10.29
Affected range stops below 4.14.230, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.19.186, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.4.266, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.9.266, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.10.29, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.11.13, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.4.111, so it looks safe — our inference, not a vendor statement
Cloud Backup· NetAppdrupal
95%All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (10)
Third Party AdvisoryVDB Entry
Source: [email protected]
http://packetstormsecurity.com/files/162434/Kernel-Live-Patch-Security-Notice-LSN-0076-1.htmlMailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlMailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlIssue TrackingThird Party Advisory
Source: [email protected]
https://news.ycombinator.com/item?id=26757760Third Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20210604-0006/CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-77
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