CVE-2026-72149dmaengine: tegra: Fix burst size calculation
- 7.5HighCVSS base score
- 0.65%Exploitation in 30 daysEPSS · top 48% 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: dmaengine: tegra: Fix burst size calculation Currently, the Tegra GPC DMA hardware requires the transfer length to be a multiple of the max burst size configured for the channel. When a client requests a transfer where the length is not evenly divisible by the configured max burst size, the DMA hangs with partial burst at the end. Fix this by reducing the burst size to the largest power-of-2 value that evenly divides the transfer length. For example, a 40-byte transfer with a 16-byte max burst will now use an 8-byte burst (40 / 8 = 5 complete bursts) instead of causing a hang. This issue was observed with the PL011 UART driver where TX DMA transfers of arbitrary lengths were stuck.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 2 months later
· 2 months 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 |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Received | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.65% · top 48% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
- affected ee17028009d49fffed8cc963455d33b1fd3f1d08 – < 735951baa311c66353405dcac39375dd66441db0
- affected ee17028009d49fffed8cc963455d33b1fd3f1d08 – < 8f0f5de1091119679d87f60dfb1acbff4b2a0ed3
- affected ee17028009d49fffed8cc963455d33b1fd3f1d08 – < a3b76b54e06d73166af4d1a284a0e0711889060c
- affected ee17028009d49fffed8cc963455d33b1fd3f1d08 – < 7926c1e4be86379945fb5f168888ac4d2aaf6c91
- affected ee17028009d49fffed8cc963455d33b1fd3f1d08 – < 6e37e9e230c7e848bd8e8cd4db15bb18bcf11ad1
- affected ee17028009d49fffed8cc963455d33b1fd3f1d08 – < 4651df83b6c796daead3447e8fd874322918ee4f
- affected 5.19
- unaffected < 5.19
- unaffected 6.1.178 – ≤ 6.1.*
- unaffected 6.6.145 – ≤ 6.6.*
- unaffected 6.12.97 – ≤ 6.12.*
- unaffected 6.18.40 – ≤ 6.18.*
- unaffected 7.1.5 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References6
- https://git.kernel.org/stable/c/735951baa311c66353405dcac39375dd66441db0 (opens in a new tab)
- https://git.kernel.org/stable/c/8f0f5de1091119679d87f60dfb1acbff4b2a0ed3 (opens in a new tab)
- https://git.kernel.org/stable/c/a3b76b54e06d73166af4d1a284a0e0711889060c (opens in a new tab)
- https://git.kernel.org/stable/c/7926c1e4be86379945fb5f168888ac4d2aaf6c91 (opens in a new tab)
- https://git.kernel.org/stable/c/6e37e9e230c7e848bd8e8cd4db15bb18bcf11ad1 (opens in a new tab)
- https://git.kernel.org/stable/c/4651df83b6c796daead3447e8fd874322918ee4f (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-2026-58907 (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-2026-72149)Record last updated .