CVE-2026-92519

riscv, bpf: Fix memory leak in bpf_jit_free

Published Sep 17, 2026 CVSS n/a EPSS < 1% KEV · Not listed

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().

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Linux

unaffected

Version	Status	Constraints
`48a8f78c50bd6f7f08fd40daa62252fd043f2f18`	affected	< 7285f004293e7dc043c55369c0dbe8350b28cc45
`48a8f78c50bd6f7f08fd40daa62252fd043f2f18`	affected	< b594c23f584ab032a5eae809eee81b809dd27330
`48a8f78c50bd6f7f08fd40daa62252fd043f2f18`	affected	< 5cadc66b534fe8140441916200a20c7efb06a388
`48a8f78c50bd6f7f08fd40daa62252fd043f2f18`	affected	< 2a3a29e90021806ea00527f6458cfd2edb58b42a
`48a8f78c50bd6f7f08fd40daa62252fd043f2f18`	affected	< 369e4635d04801f394d5bd42556f21029e95ff93

Linux

affected

Version	Status	Constraints
`6.6`	affected	—
`0`	unaffected	< 6.6
`6.6.160`	unaffected	≤ 6.6.*
`6.12.110`	unaffected	≤ 6.12.*
`6.18.52`	unaffected	≤ 6.18.*
`7.2.6`	unaffected	≤ 7.2.*
`7.3`	unaffected	≤ *

No data.

Vendor Product Versions

Linux

Linux Kernel

Version	Status	Scheme	Platform
`[48a8f78c50bd6f7f08fd40daa62252fd043f2f18,b594c23f584ab032a5eae809eee81b809dd27330)`	affected	code_commit	—
`[48a8f78c50bd6f7f08fd40daa62252fd043f2f18,5cadc66b534fe8140441916200a20c7efb06a388)`	affected	code_commit	—
`[48a8f78c50bd6f7f08fd40daa62252fd043f2f18,2a3a29e90021806ea00527f6458cfd2edb58b42a)`	affected	code_commit	—
`[48a8f78c50bd6f7f08fd40daa62252fd043f2f18,369e4635d04801f394d5bd42556f21029e95ff93)`	affected	code_commit	—

Linux

Linux Kernel

Version	Status	Scheme	Platform
`6.6`	affected	semver	—
`[0,6.6)`	unaffected	semver	—
`[6.12.110,6.13.0)`	unaffected	semver	—
`[6.18.52,6.19.0)`	unaffected	semver	—
`[7.2.6,7.3.0)`	unaffected	semver	—
`[7.3-rc1,*]`	unaffected	semver	—

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

Source	ID	Title
Debian DLA	DLA-4817-1	linux-6.12 security update
Debian DSA	DSA-6528-1	linux security update
Ubuntu USN	USN-9019-1	Linux kernel (Azure) vulnerabilities
Ubuntu USN	USN-9020-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9022-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9023-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9024-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9025-1	Linux kernel vulnerabilities
Ubuntu USN	USN-9026-1	Linux kernel (Azure) vulnerabilities
Ubuntu USN	USN-9039-1	Linux kernel (Azure CVM) vulnerabilities
Ubuntu USN	USN-9040-1	Linux kernel (Low Latency NVIDIA) vulnerabilities
Ubuntu USN	USN-9066-1	Linux kernel (HWE) vulnerabilities
Ubuntu USN	USN-9091-1	Linux kernel (NVIDIA Tegra) vulnerabilities

Metrics

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.201% probability within 30 days)

Key SSVC decision points have not yet been added.

References

Link	Providers
https://git.kernel.org/stable/c/2a3a29e90021806ea00527f6458cfd2edb58b42a
https://git.kernel.org/stable/c/369e4635d04801f394d5bd42556f21029e95ff93
https://git.kernel.org/stable/c/5cadc66b534fe8140441916200a20c7efb06a388
https://git.kernel.org/stable/c/7285f004293e7dc043c55369c0dbe8350b28cc45
https://git.kernel.org/stable/c/b594c23f584ab032a5eae809eee81b809dd27330

History

Oct 21, 2026 1:15 PM Added references View changes

Type	Values Removed	Values Added
References		https://git.kernel.org/stable/c/7285f004293e7dc043c55369c0dbe8350b28cc45

Sep 19, 2026 6:45 AM Weaknesses updated View changes

Type	Values Removed	Values Added
Weaknesses		CWE-401

Sep 17, 2026 4:30 PM Description updated. Title updated. First appearance in the feed. Affected versions updated. Affected vendors updated. Added references View changes

Type	Values Removed	Values Added
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().
Title		riscv, bpf: Fix memory leak in bpf_jit_free
First Time appeared		Linux Linux linux Kernel
CPEs		cpe:2.3:o:linux:linux_kernel::::::::
Vendors & Products		Linux Linux linux Kernel
References		https://git.kernel.org/stable/c/2a3a29e90021806ea00527f6458cfd2edb58b42a https://git.kernel.org/stable/c/369e4635d04801f394d5bd42556f21029e95ff93 https://git.kernel.org/stable/c/5cadc66b534fe8140441916200a20c7efb06a388 https://git.kernel.org/stable/c/b594c23f584ab032a5eae809eee81b809dd27330