CVE-2026-31599media: vidtv: fix NULL pointer dereference in vidtv_channel_pmt_match_sections
- 5.5MediumCVSS base score
- 0.13%Exploitation in 30 daysEPSS · top 98% 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: media: vidtv: fix NULL pointer dereference in vidtv_channel_pmt_match_sections syzbot reported a general protection fault in vidtv_psi_desc_assign [1]. vidtv_psi_pmt_stream_init() can return NULL on memory allocation failure, but vidtv_channel_pmt_match_sections() does not check for this. When tail is NULL, the subsequent call to vidtv_psi_desc_assign(&tail->descriptor, desc) dereferences a NULL pointer offset, causing a general protection fault. Add a NULL check after vidtv_psi_pmt_stream_init(). On failure, clean up the already-allocated stream chain and return. [1] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] RIP: 0010:vidtv_psi_desc_assign+0x24/0x90 drivers/media/test-drivers/vidtv/vidtv_psi.c:629 Call Trace: <TASK> vidtv_channel_pmt_match_sections drivers/media/test-drivers/vidtv/vidtv_channel.c:349 [inline] vidtv_channel_si_init+0x1445/0x1a50 drivers/media/test-drivers/vidtv/vidtv_channel.c:479 vidtv_mux_init+0x526/0xbe0 drivers/media/test-drivers/vidtv/vidtv_mux.c:519 vidtv_start_streaming drivers/media/test-drivers/vidtv/vidtv_bridge.c:194 [inline] vidtv_start_feed+0x33e/0x4d0 drivers/media/test-drivers/vidtv/vidtv_bridge.c:239
Timeline
ID reserved
By Linux
- 46 days later
· 46 days later
Published
- 51 days later
· 51 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
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.13% · top 98% of all CVEs (15 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected f90cf6079bf67988f8b1ad1ade70fc89d0080905 – < 54e18a23e62e81b8335cec3e8e9c5cb33fd88665
- affected f90cf6079bf67988f8b1ad1ade70fc89d0080905 – < 5c986b77200b5ea754ba6636deacc7e0942fec9b
- affected f90cf6079bf67988f8b1ad1ade70fc89d0080905 – < 93d9e747a9e8a5ca9e3c5e37dcff76b40399139f
- affected f90cf6079bf67988f8b1ad1ade70fc89d0080905 – < b7efb4c94797c504a1c678edb48c2aa311d3309f
- affected f90cf6079bf67988f8b1ad1ade70fc89d0080905 – < e589de36da106ef739ba98f66f5a5c2023370706
- affected f90cf6079bf67988f8b1ad1ade70fc89d0080905 – < 2dff11fb5098ae453651f8f77e94ad499c078022
- affected f90cf6079bf67988f8b1ad1ade70fc89d0080905 – < b832cfd516b8504e95884622cee60bf9a39b7945
- affected f90cf6079bf67988f8b1ad1ade70fc89d0080905 – < 07c1e474cf9acf777f09d14a8f8dfcef5b84e46f
- affected f90cf6079bf67988f8b1ad1ade70fc89d0080905 – < f8e1fc918a9fe67103bcda01d20d745f264d00a7
- affected 5.10
- unaffected < 5.10
- unaffected 5.10.258 – ≤ 5.10.*
- unaffected 5.15.209 – ≤ 5.15.*
- unaffected 6.1.175 – ≤ 6.1.*
- unaffected 6.6.136 – ≤ 6.6.*
- unaffected 6.12.83 – ≤ 6.12.*
- unaffected 6.18.24 – ≤ 6.18.*
- unaffected 6.19.14 – ≤ 6.19.*
- unaffected 7.0.1 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References
References9
- https://git.kernel.org/stable/c/54e18a23e62e81b8335cec3e8e9c5cb33fd88665 (opens in a new tab)
- https://git.kernel.org/stable/c/5c986b77200b5ea754ba6636deacc7e0942fec9b (opens in a new tab)
- https://git.kernel.org/stable/c/93d9e747a9e8a5ca9e3c5e37dcff76b40399139f (opens in a new tab)
- https://git.kernel.org/stable/c/b7efb4c94797c504a1c678edb48c2aa311d3309f (opens in a new tab)
- https://git.kernel.org/stable/c/e589de36da106ef739ba98f66f5a5c2023370706 (opens in a new tab)
- https://git.kernel.org/stable/c/2dff11fb5098ae453651f8f77e94ad499c078022 (opens in a new tab)
- https://git.kernel.org/stable/c/b832cfd516b8504e95884622cee60bf9a39b7945 (opens in a new tab)
- https://git.kernel.org/stable/c/07c1e474cf9acf777f09d14a8f8dfcef5b84e46f (opens in a new tab)
- https://git.kernel.org/stable/c/f8e1fc918a9fe67103bcda01d20d745f264d00a7 (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-2026-25492 (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-2026-31599)Record last updated .