CVE-2024-43877

media: pci: ivtv: Add check for DMA map result

HIGH
7.1
CVSS Score
Published: August 21, 2024 at 12:06 AM UTC
Updated: August 5, 2026 at 12:04 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.1
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≥ 5.4.3015.16 ≤ v < 6.1.1035.16 ≤ v < 6.10.35.16 ≤ v < 6.115.16 ≤ v < 6.6.445.4.301 ≤ v < 5.56.2 ≤ v < 6.6.446.7 ≤ v < 6.10.31932dc2f4cf6ac23e48e5fcc24d21adbe35691d11b00b7335000c0e107f774cc8ee4d5340f824f284551236b55e80b2c1720b10b77e9400118b2339e5.165.4.30166c8a83bf1de2eb3eea4734c7eda22255a965f11
Vendor states this is fixed in 24062aa7407091dee3e45a8e8037df437e848718 (fixed)
Vendor states this is fixed in 38f72c7e7c6b55614f9407555fd5ce9d019b0fa4 (fixed)
Vendor states this is fixed in 3d8fd92939e21ff0d45100ab208f8124af79402a (fixed)
Vendor states this is fixed in 629913d6d79508b166c66e07e4857e20233d85a9 (fixed)
Vendor states this is fixed in 81d0664bed91a858c7b50c263954b59d65f1b414 (fixed)
Vendor states this is fixed in c766065e8272085ea9c436414b7ddf1f12e7787b (fixed)
Vendor states this is fixed in 5.16 (unaffected)
Affected range stops below 5.5, so it looks safe — our inference, not a vendor statement
Vendor states this is fixed in 6.1.103 (unaffected)
Vendor states this is fixed in 6.10.3 (unaffected)
Vendor states this is fixed in 6.11 (unaffected)
Vendor states this is fixed in 6.6.44 (unaffected)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-125

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