CVE-2022-49844
- Source
- https://cve.org/CVERecord?id=CVE-2022-49844
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49844.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-49844
- Downstream
- Published
- 2025-05-01T14:09:58.999Z
- Modified
- 2026-03-10T21:48:19.776393Z
- Severity
-
- 7.1 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
- Summary
- can: dev: fix skb drop check
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
can: dev: fix skb drop check
In commit a6d190f8c767 ("can: skb: drop tx skb if in listen only mode") the priv->ctrlmode element is read even on virtual CAN interfaces that do not create the struct can_priv at startup. This out-of-bounds read may lead to CAN frame drops for virtual CAN interfaces like vcan and vxcan.
This patch mainly reverts the original commit and adds a new helper for CAN interface drivers that provide the required information in struct can_priv.
[mkl: patch pch_can, too]
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49844.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/386c49fe31ee748e053860b3bac7794a933ac9ac
- https://git.kernel.org/stable/c/ae64438be1923e3c1102d90fd41db7afcfaf54cc
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49844.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-49844
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduceda6d190f8c7670068d8c154ef8477eca07b5e3574Fixed386c49fe31ee748e053860b3bac7794a933ac9acFixedae64438be1923e3c1102d90fd41db7afcfaf54cc
Affected versions
v5.*
v5.19
v5.19-rc2
v5.19-rc3
v5.19-rc4
v5.19-rc5
v5.19-rc6
v5.19-rc7
v5.19-rc8
v6.*
v6.0
v6.0-rc1
v6.0-rc2
v6.0-rc3
v6.0-rc4
v6.0-rc5
v6.0-rc6
v6.0-rc7
v6.0.1
v6.0.2
v6.0.3
v6.0.4
v6.0.5
v6.0.6
v6.0.7
v6.0.8
v6.1-rc1
v6.1-rc2
v6.1-rc3
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49844.json"
vanir_signatures
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