CVE-2026-90222nfc: pn533: hold a reference to the request skb during send_frame
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 89% 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: nfc: pn533: hold a reference to the request skb during send_frame __pn533_send_async() publishes the command and then calls dev->phy_ops->send_frame(). Once dev->cmd is set, an incoming frame can be matched to this command: the I2C threaded IRQ runs pn533_recv_frame(), which queues cmd_complete_work, and pn533_send_async_complete() frees cmd->req with consume_skb(). On the I2C transport, pn533_i2c_send_frame() still dereferences the same skb after i2c_master_send() returns, so a completion that races the send can free the skb while the transport is still using it. The request skb is owned by the command object and may be freed by command completion at any time after dev->cmd is published, so the transport send path must not assume it stays alive. Hold a temporary reference to the request skb across the send_frame() call so the transport always sees a live skb even if completion races the send. Add a pn533_send_cmd_frame() helper and use it from all three send paths.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 32 days later
· 32 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)
- 0.21% · top 89% 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 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc – < 8710faddef4ad8b2a6bfa985d896e2e1bfb77018
- affected 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc – < 19f1239758c23f087f4c25733cfcf62bf0b06051
- affected 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc – < 7ee72c64b4b66b1b42dbddbca0a80a218f1b9297
- affected 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc – < 753bdaf3220fe8371a6c3c75da645ea7753d11be
- affected 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc – < d329f61ad5786900334a54c2445dc99feda545bf
- affected 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc – < 7a8e0a7aef80721da287ac246349aba7d98f6aed
- affected 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc – < 3e7a093c177f9f8b9fd039cab41191515079425a
- affected 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc – < 47792358a624ea066455ef86b744159928cd7716
- affected 4.7
- unaffected < 4.7
- unaffected 5.10.270 – ≤ 5.10.*
- unaffected 5.15.221 – ≤ 5.15.*
- unaffected 6.1.188 – ≤ 6.1.*
- unaffected 6.6.157 – ≤ 6.6.*
- unaffected 6.12.110 – ≤ 6.12.*
- unaffected 6.18.52 – ≤ 6.18.*
- unaffected 7.2.6 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/8710faddef4ad8b2a6bfa985d896e2e1bfb77018 (opens in a new tab)
- https://git.kernel.org/stable/c/19f1239758c23f087f4c25733cfcf62bf0b06051 (opens in a new tab)
- https://git.kernel.org/stable/c/7ee72c64b4b66b1b42dbddbca0a80a218f1b9297 (opens in a new tab)
- https://git.kernel.org/stable/c/753bdaf3220fe8371a6c3c75da645ea7753d11be (opens in a new tab)
- https://git.kernel.org/stable/c/d329f61ad5786900334a54c2445dc99feda545bf (opens in a new tab)
- https://git.kernel.org/stable/c/7a8e0a7aef80721da287ac246349aba7d98f6aed (opens in a new tab)
- https://git.kernel.org/stable/c/3e7a093c177f9f8b9fd039cab41191515079425a (opens in a new tab)
- https://git.kernel.org/stable/c/47792358a624ea066455ef86b744159928cd7716 (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-2026-81815 (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)
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[](https://cveledger.app/cve/CVE-2026-90222)Record last updated .