CVE-2026-90192mailbox: qcom-cpucp: handle NULL data in send_data callback
- —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: mailbox: qcom-cpucp: handle NULL data in send_data callback mailbox_clear_channel() calls mbox_send_message() with NULL data to notify the remote side that the RX channel has been cleared. qcom_cpucp_mbox_send_data() blindly dereferenced the data pointer, causing a NULL pointer dereference kernel panic when invoked from this path under PREEMPT_RT. Add an explicit NULL check and return early without writing to the TX register, which is the correct behaviour for a channel-clear notification.
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 (15 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 0e2a9a03106cd5fa0dbc9047675e7645c55e2669 – < 3d11d2a6c9a10de287e0f1b53a5e65d16afe2760
- affected 0e2a9a03106cd5fa0dbc9047675e7645c55e2669 – < 413b0b94d6d06b8d49735280e86a01dac90cf177
- affected 0e2a9a03106cd5fa0dbc9047675e7645c55e2669 – < b3d73e7440e0c40644285be1bda349cdf90122d8
- affected 0e2a9a03106cd5fa0dbc9047675e7645c55e2669 – < fc4f2f99530298a1739226947aa76525142d421d
- affected 6.11
- unaffected < 6.11
- unaffected 6.12.110 – ≤ 6.12.*
- unaffected 6.18.52 – ≤ 6.18.*
- unaffected 7.2.6 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References4
- https://git.kernel.org/stable/c/3d11d2a6c9a10de287e0f1b53a5e65d16afe2760 (opens in a new tab)
- https://git.kernel.org/stable/c/413b0b94d6d06b8d49735280e86a01dac90cf177 (opens in a new tab)
- https://git.kernel.org/stable/c/b3d73e7440e0c40644285be1bda349cdf90122d8 (opens in a new tab)
- https://git.kernel.org/stable/c/fc4f2f99530298a1739226947aa76525142d421d (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-2026-81785 (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-2026-90192)Record last updated .