VulnerabilityPublished 17 Sep 2026Updated 21 Oct 2026

CVE-2026-92519: Linux kernel · riscv, bpf: Fix memory leak in bpf_jit_free

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in b594c23f584ab032a5eae809eee81b809dd27330 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 13:47 UTC

Severity

Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in b594c23f584ab032a5eae809eee81b809dd27330, 7285f004293e7dc043c55369c0dbe8350b28cc45, 369e4635d04801f394d5bd42556f21029e95ff93 +2

Exploitation evidence

Disclosed: evidence found.
CVE published 17 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 48a8f78c50bd6f7f08fd40daa62252fd043f2f18, < b594c23f584ab032a5eae809eee81b809dd27330	Fixed in b594c23f584ab032a5eae809eee81b809dd27330
LinuxLinux	Affected ≥ 48a8f78c50bd6f7f08fd40daa62252fd043f2f18, < 7285f004293e7dc043c55369c0dbe8350b28cc45	Fixed in 7285f004293e7dc043c55369c0dbe8350b28cc45
LinuxLinux	Affected ≥ 48a8f78c50bd6f7f08fd40daa62252fd043f2f18, < 369e4635d04801f394d5bd42556f21029e95ff93	Fixed in 369e4635d04801f394d5bd42556f21029e95ff93
LinuxLinux	Affected ≥ 48a8f78c50bd6f7f08fd40daa62252fd043f2f18, < 5cadc66b534fe8140441916200a20c7efb06a388	Fixed in 5cadc66b534fe8140441916200a20c7efb06a388
LinuxLinux	Affected ≥ 48a8f78c50bd6f7f08fd40daa62252fd043f2f18, < 2a3a29e90021806ea00527f6458cfd2edb58b42a	Fixed in 2a3a29e90021806ea00527f6458cfd2edb58b42a
LinuxLinux	Affected =6.6	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: riscv, bpf: Fix memory leak in bpf_jit_free When bpf_int_jit_compile() is called for subprograms, it returns early during the first pass (!prog->is_func || extra_pass is false), keeping ctx->offset alive for the subsequent extra pass. If JIT compilation fails for a later subprogram, the BPF core aborts and calls bpf_jit_free() to clean up the first subprogram. However, bpf_jit_free() fails to free jit_data->ctx.offset, which causes a memory leak of the JIT context offsets array. Fix this by adding the missing kfree(jit_data->ctx.offset) in bpf_jit_free().

References

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