{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-31439", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-03-09T15:48:24.090Z", "datePublished": "2026-04-22T13:53:37.754Z", "dateUpdated": "2026-05-11T22:08:43.715Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T22:08:43.715Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: xilinx: xdma: Fix regmap init error handling\n\ndevm_regmap_init_mmio returns an ERR_PTR() upon error, not NULL.\nFix the error check and also fix the error message. Use the error code\nfrom ERR_PTR() instead of the wrong value in ret."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/dma/xilinx/xdma.c"], "versions": [{"version": "17ce252266c7f016ece026492c45838f852ddc79", "lessThan": "4b6e1da50b22e5528b9003f376a3cecccce4decc", "status": "affected", "versionType": "git"}, {"version": "17ce252266c7f016ece026492c45838f852ddc79", "lessThan": "9787b3d9b908785b40bc3f2e6d7082fdb8fdd98a", "status": "affected", "versionType": "git"}, {"version": "17ce252266c7f016ece026492c45838f852ddc79", "lessThan": "f27197ccfd2ecd2c71f27fd57c6d507e892ad24d", "status": "affected", "versionType": "git"}, {"version": "17ce252266c7f016ece026492c45838f852ddc79", "lessThan": "59f6ccd0f3345be2e8a78bdef2103e93f180633a", "status": "affected", "versionType": "git"}, {"version": "17ce252266c7f016ece026492c45838f852ddc79", "lessThan": "e0adbf74e2a0455a6bc9628726ba87bcd0b42bf8", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/dma/xilinx/xdma.c"], "versions": [{"version": "6.3", "status": "affected"}, {"version": "0", "lessThan": "6.3", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.131", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.80", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.21", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.11", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.6.131"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.12.80"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.18.21"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "6.19.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/4b6e1da50b22e5528b9003f376a3cecccce4decc"}, {"url": "https://git.kernel.org/stable/c/9787b3d9b908785b40bc3f2e6d7082fdb8fdd98a"}, {"url": "https://git.kernel.org/stable/c/f27197ccfd2ecd2c71f27fd57c6d507e892ad24d"}, {"url": "https://git.kernel.org/stable/c/59f6ccd0f3345be2e8a78bdef2103e93f180633a"}, {"url": "https://git.kernel.org/stable/c/e0adbf74e2a0455a6bc9628726ba87bcd0b42bf8"}], "title": "dmaengine: xilinx: xdma: Fix regmap init error handling", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"bugzilla": {"description": "kernel: dmaengine: xilinx: xdma: Fix regmap init error handling", "id": "2460726", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2460726"}, "csaw": false, "cwe": "CWE-390", "details": ["A flaw was found in the Linux kernel's Xilinx DMA (Direct Memory Access) engine. The xdma driver's regmap initialization incorrectly handled errors, specifically when the devm_regmap_init_mmio function returned an error pointer instead of a null value. This improper error handling could potentially lead to system instability or resource exhaustion under specific error conditions."], "name": "CVE-2026-31439", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-04-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-31439\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-31439\nhttps://lore.kernel.org/linux-cve-announce/2026042243-CVE-2026-31439-b890@gregkh/T"]}

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