Bug 2282477 (CVE-2021-47305) - CVE-2021-47305 kernel: dma-buf/sync_file: Don't leak fences on merge failure
Summary: CVE-2021-47305 kernel: dma-buf/sync_file: Don't leak fences on merge failure
Keywords:
Status: NEW
Alias: CVE-2021-47305
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 2282500
TreeView+ depends on / blocked
 
Reported: 2024-05-22 12:34 UTC by ybuenos
Modified: 2024-06-13 09:23 UTC (History)
49 users (show)

Fixed In Version: kernel 4.14.241, kernel 4.19.199, kernel 5.4.135, kernel 5.10.53, kernel 5.13.5, kernel 5.14
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Description ybuenos 2024-05-22 12:34:32 UTC
In the Linux kernel, the following vulnerability has been resolved:

dma-buf/sync_file: Don't leak fences on merge failure

The Linux kernel CVE team has assigned CVE-2021-47305 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024052127-CVE-2021-47305-e1c5@gregkh/T

Comment 4 Alex 2024-06-09 17:34:24 UTC
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-47305 is: CHECK	Maybe valid. Check manually. with impact LOW (that is an approximation based on flags SIMPLEFIX LEAK ERRORPATH  ; these flags parsed automatically based on patch data). Such automatic check happens only for Low/Moderates (and only when not from reporter, but parsing already existing CVE). Highs always checked manually (I check it myself and then we check it again in Remediation team). In rare cases some of the Moderates could be increased to High later.


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