CVE-2024-43877: media: pci: ivtv: Add check for DMA map result
Vulnerability summary
CVE-2024-43877 is a high (CVSS 7.8) Out-of-bounds Read vulnerability in linux. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12.4% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 13 · Related 10Timeline
- 21-08-2024PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: media: pci: ivtv: Add check for DMA map result In case DMA fails, 'dma->SG_length' is 0. This value is later used to access 'dma->SGarray[dma->SG_length - 1]', which will cause out of bounds access. Add check to return early on invalid value. Adjust warnings accordingly. Found by Linux Verification Center (linuxtesting.org) with SVACE.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HDiffers
- NVDNIST7.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HDiffers
EPSS trend
Probability
0.22%
Chance of exploitation in the next 30 days
Percentile
12%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.22% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu93 products
- linux< 6.8.0-50.51
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 6.8.0-1020.22
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 4551236b55e80b2c1720b10b77e9400118b2339e, < 38f72c7e7c6b55614f9407555fd5ce9d019b0fa4 | ≥ 66c8a83bf1de2eb3eea4734c7eda22255a965f11, < 81d0664bed91a858c7b50c263954b59d65f1b414 | ≥ 1932dc2f4cf6ac23e48e5fcc24d21adbe35691d1, < 24062aa7407091dee3e45a8e8037df437e848718 | ≥ 1932dc2f4cf6ac23e48e5fcc24d21adbe35691d1, < 3d8fd92939e21ff0d45100ab208f8124af79402a | ≥ 1932dc2f4cf6ac23e48e5fcc24d21adbe35691d1, < c766065e8272085ea9c436414b7ddf1f12e7787b | ≥ 1932dc2f4cf6ac23e48e5fcc24d21adbe35691d1, < 629913d6d79508b166c66e07e4857e20233d85a9 | 1b00b7335000c0e107f774cc8ee4d5340f824f28 | ≥ 5.4.301, < 5.5 | 5.16
- linux_kernel≥ 5.16, < 6.1.103 | ≥ 6.2, < 6.6.44 | ≥ 6.7, < 6.10.3
Debian1 product
- linux< 6.1.106-1 | < 6.10.3-1
3 vendors · 96 products
