Vulnerability in Linux kernel (CVE-2021-47610)
Summary
Vulnerability in Linux kernel (CVE-2021-47610). Risk of unauthorized operations or information disclosure.
Original description
The description as published by the source.
In the Linux kernel, the following vulnerability has been resolved:
drm/msm: Fix null ptr access msm_ioctl_gem_submit()
Fix the below null pointer dereference in msm_ioctl_gem_submit():
26545.260705: Call trace:
26545.263223: kref_put+0x1c/0x60
26545.266452: msm_ioctl_gem_submit+0x254/0x744
26545.270937: drm_ioctl_kernel+0xa8/0x124
26545.274976: drm_ioctl+0x21c/0x33c
26545.278478: drm_compat_ioctl+0xdc/0xf0
26545.282428: __arm64_compat_sys_ioctl+0xc8/0x100
26545.287169: el0_svc_common+0xf8/0x250
26545.291025: do_el0_svc_compat+0x28/0x54
26545.295066: el0_svc_compat+0x10/0x1c
26545.298838: el0_sync_compat_handler+0xa8/0xcc
26545.303403: el0_sync_compat+0x188/0x1c0
26545.307445: Code: d503201f d503201f 52800028 4b0803e8 (b8680008)
26545.318799: Kernel panic - not syncing: Oops: Fatal exception
Source: NIST National Vulnerability Database NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2021-47610 has been found in Linux kernel.
Risk of unauthorized operations or information disclosure. CVSS score: 5.5/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Linux kernel CVE-2021-47610" on the vendor's site.
CVE-2021-47610 (Linux kernel) — CWE-476 / CVSS v3 5.5
Attack vector: local / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-476) exists in Linux kernel.
Check the vendor advisory for the affected versions of Linux kernel.
Severity: Medium (CVSS 5.5/10). Risk of unauthorized operations or information disclosure.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Linux kernel を使っているサービスとバージョンを洗い出す。
-
2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2021-47610 linux Fixed in: 5.15.15-1
References
- patch git.kernel.org
- patch git.kernel.org