CVE-2026-98045bpf: Mark faultable stack helpers as sleepable
- —Not scoredno CVSS score yet
- 0.17%Exploitation in 30 daysEPSS · top 94% 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: Mark faultable stack helpers as sleepable The faultable variants of bpf_get_stack() and bpf_get_task_stack() pass may_fault=true into the common stack collection code. Resolving user-space build IDs may then call build_id_parse_file() and block on filesystem reads. Neither helper prototype sets might_sleep. Since prototype selection uses the sleepability of the whole program, the verifier can still allow these helpers from a non-sleepable region within that program, such as an explicit RCU or preemption-disabled region. The task-stack helper can also be called from a non-sleepable timer callback of a sleepable program. Mark both faultable prototypes as sleepable. The existing helper context check then rejects these calls while continuing to allow them in genuinely sleepable contexts.
Timeline
ID reserved
By Linux
Published
- 24 days later
· 24 days 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
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.17% · top 94% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected d4dd9775ec242425576af93daadb80a34083a53c – < 44b8d370f2725bad215da3e67668e98ba96671bd
- affected d4dd9775ec242425576af93daadb80a34083a53c – < 3014e8a8bdad55075d89836ad9c10710a9a69837
- affected d4dd9775ec242425576af93daadb80a34083a53c – < 19e8d5a98afd071d8c1c5adeccf92b3c42eddc70
- affected d4dd9775ec242425576af93daadb80a34083a53c – < 9d02927fdf4e930893c92e35fed01a2704496900
- affected 6.12
- unaffected < 6.12
- unaffected 6.12.111 – ≤ 6.12.*
- unaffected 6.18.53 – ≤ 6.18.*
- unaffected 7.2.7 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References4
- https://git.kernel.org/stable/c/44b8d370f2725bad215da3e67668e98ba96671bd (opens in a new tab)
- https://git.kernel.org/stable/c/3014e8a8bdad55075d89836ad9c10710a9a69837 (opens in a new tab)
- https://git.kernel.org/stable/c/19e8d5a98afd071d8c1c5adeccf92b3c42eddc70 (opens in a new tab)
- https://git.kernel.org/stable/c/9d02927fdf4e930893c92e35fed01a2704496900 (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-2026-86698 (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-2026-98045)Record last updated .