CVE-2022-49137: drm/amd/amdgpu/amdgpu_cs: fix refcount leak of a dma_fence obj
Vulnerability summary
CVE-2022-49137 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 18.5% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 7 · Related 7Timeline
- 26-02-2025PublishedVulnerability first disclosed.
- 12-08-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amd/amdgpu/amdgpu_cs: fix refcount leak of a dma_fence obj This issue takes place in an error path in amdgpu_cs_fence_to_handle_ioctl(). When `info->in.what` falls into default case, the function simply returns -EINVAL, forgetting to decrement the reference count of a dma_fence obj, which is bumped earlier by amdgpu_cs_get_fence(). This may result in reference count leaks. Fix it by decreasing the refcount of specific object before returning the error code.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.27%
Chance of exploitation in the next 30 days
Percentile
19%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.27% 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 causeNo weakness data has been published for this record.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu107 products
- linuxAll versions (No fix recorded) | < 5.4.0-117.132 | < 5.15.0-37.39
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.4.0-1078.84 | < 5.15.0-1011.14
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 7ca24cf2d2269bde25e21c02a77fe81995a081ae, < 72d77ddb2224ebc00648f4f78f8a9a259dccbdf7 | ≥ 7ca24cf2d2269bde25e21c02a77fe81995a081ae, < 4009f104b02b223d1a11d74b36b1cc083bc37028 | ≥ 7ca24cf2d2269bde25e21c02a77fe81995a081ae, < 927beb05aaa429c883cc0ec6adc48964b187e291 | ≥ 7ca24cf2d2269bde25e21c02a77fe81995a081ae, < 3edd8646cb7c11b57c90e026bda6f21076223f5b | ≥ 7ca24cf2d2269bde25e21c02a77fe81995a081ae, < b6d1f7d97c81ebaf2cda9c4c943ee2e484fffdcf | ≥ 7ca24cf2d2269bde25e21c02a77fe81995a081ae, < bc2d5c0775c839e2b072884f4ee6a93ba410f107 | ≥ 7ca24cf2d2269bde25e21c02a77fe81995a081ae, < dfced44f122c500004a48ecc8db516bb6a295a1b | 4.15
- linux_kernel< 4.19.238 | ≥ 4.20, < 5.4.189 | ≥ 5.5, < 5.10.111 | ≥ 5.11, < 5.15.34 | ≥ 5.16, < 5.16.20 | ≥ 5.17, < 5.17.3
Debian1 product
- linux< 5.17.3-1
3 vendors · 110 products
