CVE-2026-43010bpf: Reject sleepable kprobe_multi programs at attach time
- 5.5MediumCVSS base score
- 0.12%Exploitation in 30 daysEPSS · top 98% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: bpf: Reject sleepable kprobe_multi programs at attach time kprobe.multi programs run in atomic/RCU context and cannot sleep. However, bpf_kprobe_multi_link_attach() did not validate whether the program being attached had the sleepable flag set, allowing sleepable helpers such as bpf_copy_from_user() to be invoked from a non-sleepable context. This causes a "sleeping function called from invalid context" splat: BUG: sleeping function called from invalid context at ./include/linux/uaccess.h:169 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 1787, name: sudo preempt_count: 1, expected: 0 RCU nest depth: 2, expected: 0 Fix this by rejecting sleepable programs early in bpf_kprobe_multi_link_attach(), before any further processing.
Timeline
ID reserved
By Linux
Published
- 6 months later
· 6 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.12% · top 98% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 0dcac272540613d41c05e89679e4ddb978b612f1 – < c2b5e13dee9cc83e664daf4c13077dcc618a44e9
- affected 0dcac272540613d41c05e89679e4ddb978b612f1 – < 89327ed787746a7aa4db3c97f91d2e294228932b
- affected 0dcac272540613d41c05e89679e4ddb978b612f1 – < d97b19fe5265f7901b2c862f88a4eb1b129a0b61
- affected 0dcac272540613d41c05e89679e4ddb978b612f1 – < dc9a060d76c12b23c5f378ee115d5e5d03d8bbf3
- affected 0dcac272540613d41c05e89679e4ddb978b612f1 – < f952157e695fd434bdc05af63a703bb082a78717
- affected 0dcac272540613d41c05e89679e4ddb978b612f1 – < eb7024bfcc5f68ed11ed9dd4891a3073c15f04a8
- affected 5.18
- unaffected < 5.18
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.144 – ≤ 6.6.*
- unaffected 6.12.95 – ≤ 6.12.*
- unaffected 6.18.22 – ≤ 6.18.*
- unaffected 6.19.12 – ≤ 6.19.*
- unaffected 7.0 – ≤ *
References
References6
- https://git.kernel.org/stable/c/c2b5e13dee9cc83e664daf4c13077dcc618a44e9 (opens in a new tab)
- https://git.kernel.org/stable/c/89327ed787746a7aa4db3c97f91d2e294228932b (opens in a new tab)
- https://git.kernel.org/stable/c/d97b19fe5265f7901b2c862f88a4eb1b129a0b61 (opens in a new tab)
- https://git.kernel.org/stable/c/dc9a060d76c12b23c5f378ee115d5e5d03d8bbf3 (opens in a new tab)
- https://git.kernel.org/stable/c/f952157e695fd434bdc05af63a703bb082a78717 (opens in a new tab)
- https://git.kernel.org/stable/c/eb7024bfcc5f68ed11ed9dd4891a3073c15f04a8 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-26609 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-43010)Record last updated .