CVE-2026-90029usb: storage: realtek_cr: fix use-after-free on disconnect
- —Not scoredno CVSS score yet
- 0.20%Exploitation in 30 daysEPSS · top 90% 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: usb: storage: realtek_cr: fix use-after-free on disconnect realtek_cr_destructor() calls timer_delete() before the chip containing the timer is freed. The timer callback may still be running and can rearm itself, resulting in a use-after-free. Use timer_shutdown_sync() to wait for the callback and prevent further rearming. Do this unconditionally because ss_en may be changed after the timer is armed. Move timer_setup() into init_realtek_cr() so the timer is initialized before any failure path can invoke the destructor. Found by static analysis.
Timeline
ID reserved
By Linux
- 5 days later
· 5 days later
Published
- 44 days later
· 44 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)
- 0.20% · top 90% 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 e931830bb877e2aad9a1be83506f9bdb26c91e4e – < f98c2f119fcd81cfede114d2fd3463a17aed8209
- affected e931830bb877e2aad9a1be83506f9bdb26c91e4e – < 0935e57ede003bbe35de9c5d6a49260999ca0314
- affected e931830bb877e2aad9a1be83506f9bdb26c91e4e – < c1e7e35100efffba7c9e1dfa76519d6cd323ba3d
- affected e931830bb877e2aad9a1be83506f9bdb26c91e4e – < 524d4257f741cd95eb85e2817c9c890928fcfef7
- affected e931830bb877e2aad9a1be83506f9bdb26c91e4e – < 7c4e2f964c65dea4ea22386799d5fb10ef1e3e54
- affected e931830bb877e2aad9a1be83506f9bdb26c91e4e – < cae9dbba6adae21a04a3bd045e07b489847ff2c6
- affected e931830bb877e2aad9a1be83506f9bdb26c91e4e – < 4ffee1aebb0c0ffcda9faffd17834ea9b00d42cc
- affected 3.1
- unaffected < 3.1
- unaffected 5.15.224 – ≤ 5.15.*
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.112 – ≤ 6.12.*
- unaffected 6.18.51 – ≤ 6.18.*
- unaffected 7.2.5 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References7
- https://git.kernel.org/stable/c/f98c2f119fcd81cfede114d2fd3463a17aed8209 (opens in a new tab)
- https://git.kernel.org/stable/c/0935e57ede003bbe35de9c5d6a49260999ca0314 (opens in a new tab)
- https://git.kernel.org/stable/c/c1e7e35100efffba7c9e1dfa76519d6cd323ba3d (opens in a new tab)
- https://git.kernel.org/stable/c/524d4257f741cd95eb85e2817c9c890928fcfef7 (opens in a new tab)
- https://git.kernel.org/stable/c/7c4e2f964c65dea4ea22386799d5fb10ef1e3e54 (opens in a new tab)
- https://git.kernel.org/stable/c/cae9dbba6adae21a04a3bd045e07b489847ff2c6 (opens in a new tab)
- https://git.kernel.org/stable/c/4ffee1aebb0c0ffcda9faffd17834ea9b00d42cc (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-2026-80637 (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-2026-90029)Record last updated .