CVE Explorer

CVE-2026-43070

In the Linux kernel, the following vulnerability has been resolved: bpf: Reset register ID for BPF_END value tracking When a register undergoes a BPF_END (byte swap) operation, its scalar value is mutated in-place. If this register previously shared a scalar ID with another register (e.g., after an `r1 = r0` assignment), this tie must be broken. Currently, the verifier misses resetting `dst_reg->id` to 0 for BPF_END. Consequently, if a conditional jump checks the swapped register, the verifie

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:cd05e6444cbce957ed6fdcb804b082eb8102016ab11086ff1fc1a6b23da7356b

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/bpf/verifier.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a17443af874229408ce6b78e2c8a2b5adeb4b7d8","status":"affected","version":"4c03342e5ac532fb34d13a7b51dd7261dfc48963","versionType":"git"},{"lessThan":"0d15c3611a2cc5d08993545d4032055ae10ae2c1","status":"affected","version":"d00ce96623a69a100ad79675d0e85fda3c50d89b","versionType":"git"},{"lessThan":"a3125bc01884431d30d731461634c8295b6f0529","status":"affected","version":"9d21199842247ab05c675fb9…

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:0671b39658f54a614c20a5c670c79be74dae55a17676941577a474762cd82612 · sha256:4d518fe90a6403ef… · /containers/cna/affected/0

{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/bpf/verifier.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"6.18.21","status":"affected","version":"6.18.17","versionType":"semver"},{"lessThan":"6.19.11","status":"affected","version":"6.19.7","versionType":"semver"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:0671b39658f54a614c20a5c670c79be74dae55a17676941577a474762cd82612 · sha256:4d518fe90a6403ef… · /containers/cna/affected/1

Affected products and versions

2 source assertions

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:0671b39658f54a614c20a5c670c79be74dae55a17676941577a474762cd82612 · sha256:4d518fe90a6403ef… · /containers/cna/affected/0

{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/bpf/verifier.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"6.18.21","status":"affected","version":"6.18.17","versionType":"semver"},{"lessThan":"6.19.11","status":"affected","version":"6.19.7","versionType":"semver"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:0671b39658f54a614c20a5c670c79be74dae55a17676941577a474762cd82612 · sha256:4d518fe90a6403ef… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion

{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:0671b39658f54a614c20a5c670c79be74dae55a17676941577a474762cd82612 · sha256:4d518fe90a6403ef… · /containers/cna/metrics/0/cvssV3_1

Source references

3 source assertions

{"url":"https://git.kernel.org/stable/c/0d15c3611a2cc5d08993545d4032055ae10ae2c1"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:0671b39658f54a614c20a5c670c79be74dae55a17676941577a474762cd82612 · sha256:4d518fe90a6403ef… · /containers/cna/references/1

{"url":"https://git.kernel.org/stable/c/a17443af874229408ce6b78e2c8a2b5adeb4b7d8"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:0671b39658f54a614c20a5c670c79be74dae55a17676941577a474762cd82612 · sha256:4d518fe90a6403ef… · /containers/cna/references/0

{"url":"https://git.kernel.org/stable/c/a3125bc01884431d30d731461634c8295b6f0529"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:0671b39658f54a614c20a5c670c79be74dae55a17676941577a474762cd82612 · sha256:4d518fe90a6403ef… · /containers/cna/references/2

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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