{"apiVersion":"1.0","identifier":"CVE-2026-99056","description":"In the Linux kernel, the following vulnerability has been resolved: strparser: make sure __strp_recv isn-t running before tearing down the parser The comment above strp_done() claims that if strp is stopped, strp_recv will no longer be called. That-s only true if the caller has a mechanism (eg locking) to guarantee that strp_recv() calls that started before strp_stop() have completed by the time we call strp_done(). This adds a dummy lock_sock/release_sock pair to guarantee that any in-flight strp_recv() (which runs under either bh_lock_sock or lock_sock, depending if it-s called from ->sk_data_ready or strp_work) has completed. Only espintcp can be affected by this race condition, but this patch makes sure no future user of strp can have the bug. This could crash on strp->sk (-general mode- of strp), but this mode has been here for 9 years and has never been used. It-ll be gone soon, no point worrying about it. Switch the stopped/paused/etc bits to u8-s to avoid races between strp_stop() and strp_pause/unpause(). A reproducer has been published and turns the possible UAF into an exploit [1].","publishedAt":"2026-10-23T13:17:29","lastModifiedAt":"2026-10-30T13:21:42","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-99056","cvssScore":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","epssProbability":0.00164,"riskScore":0.79,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-99056","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-99056","en":"https://www.redsauce.net/en/cves/CVE-2026-99056","fr":"https://www.redsauce.net/fr/cves/CVE-2026-99056","pt":"https://www.redsauce.net/pt/cves/CVE-2026-99056","de":"https://www.redsauce.net/de/cves/CVE-2026-99056","sk":"https://www.redsauce.net/sk/cves/CVE-2026-99056","el":"https://www.redsauce.net/el/cves/CVE-2026-99056"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-99056"}}