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Message-ID: <2025070334-CVE-2025-38143-09c4@gregkh> Date: Thu, 3 Jul 2025 10:36:00 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...nel.org> Subject: CVE-2025-38143: backlight: pm8941: Add NULL check in wled_configure() From: Greg Kroah-Hartman <gregkh@...nel.org> Description =========== In the Linux kernel, the following vulnerability has been resolved: backlight: pm8941: Add NULL check in wled_configure() devm_kasprintf() returns NULL when memory allocation fails. Currently, wled_configure() does not check for this case, which results in a NULL pointer dereference. Add NULL check after devm_kasprintf() to prevent this issue. The Linux kernel CVE team has assigned CVE-2025-38143 to this issue. Affected and fixed versions =========================== Issue introduced in 5.0 with commit f86b77583d88c8402e8d89a339d96f847318f8a8 and fixed in 5.10.239 with commit 6a56446595730a5e3f06a30902e23cb037d28146 Issue introduced in 5.0 with commit f86b77583d88c8402e8d89a339d96f847318f8a8 and fixed in 5.15.186 with commit 9d06ac32c202142da40904180f2669ed4f5073ac Issue introduced in 5.0 with commit f86b77583d88c8402e8d89a339d96f847318f8a8 and fixed in 6.1.142 with commit 21528806560510458378ea52c37e35b0773afaea Issue introduced in 5.0 with commit f86b77583d88c8402e8d89a339d96f847318f8a8 and fixed in 6.6.94 with commit fde314445332015273c8f51d2659885c606fe135 Issue introduced in 5.0 with commit f86b77583d88c8402e8d89a339d96f847318f8a8 and fixed in 6.12.34 with commit 1be2000b703b02e149f8f2061054489f6c18c972 Issue introduced in 5.0 with commit f86b77583d88c8402e8d89a339d96f847318f8a8 and fixed in 6.15.3 with commit 4a715be3fe80b68fa55cb3569af3d294be101626 Issue introduced in 5.0 with commit f86b77583d88c8402e8d89a339d96f847318f8a8 and fixed in 6.16-rc1 with commit e12d3e1624a02706cdd3628bbf5668827214fa33 Please see https://www.kernel.org for a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2025-38143 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: drivers/video/backlight/qcom-wled.c Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/6a56446595730a5e3f06a30902e23cb037d28146 https://git.kernel.org/stable/c/9d06ac32c202142da40904180f2669ed4f5073ac https://git.kernel.org/stable/c/21528806560510458378ea52c37e35b0773afaea https://git.kernel.org/stable/c/fde314445332015273c8f51d2659885c606fe135 https://git.kernel.org/stable/c/1be2000b703b02e149f8f2061054489f6c18c972 https://git.kernel.org/stable/c/4a715be3fe80b68fa55cb3569af3d294be101626 https://git.kernel.org/stable/c/e12d3e1624a02706cdd3628bbf5668827214fa33
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