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Message-ID: <2024072906-CVE-2024-42092-8375@gregkh> Date: Mon, 29 Jul 2024 19:35:06 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Subject: CVE-2024-42092: gpio: davinci: Validate the obtained number of IRQs Description =========== In the Linux kernel, the following vulnerability has been resolved: gpio: davinci: Validate the obtained number of IRQs Value of pdata->gpio_unbanked is taken from Device Tree. In case of broken DT due to any error this value can be any. Without this value validation there can be out of chips->irqs array boundaries access in davinci_gpio_probe(). Validate the obtained nirq value so that it won't exceed the maximum number of IRQs per bank. Found by Linux Verification Center (linuxtesting.org) with SVACE. The Linux kernel CVE team has assigned CVE-2024-42092 to this issue. Affected and fixed versions =========================== Issue introduced in 4.19 with commit eb3744a2dd01 and fixed in 4.19.317 with commit a8d78984fdc1 Issue introduced in 4.19 with commit eb3744a2dd01 and fixed in 5.4.279 with commit cd7572198433 Issue introduced in 4.19 with commit eb3744a2dd01 and fixed in 5.10.221 with commit e44a83bf15c4 Issue introduced in 4.19 with commit eb3744a2dd01 and fixed in 5.15.162 with commit 70b48899f3f2 Issue introduced in 4.19 with commit eb3744a2dd01 and fixed in 6.1.97 with commit 89d7008af494 Issue introduced in 4.19 with commit eb3744a2dd01 and fixed in 6.6.37 with commit 2d83492259ad Issue introduced in 4.19 with commit eb3744a2dd01 and fixed in 6.9.8 with commit c542e51306d5 Issue introduced in 4.19 with commit eb3744a2dd01 and fixed in 6.10 with commit 7aa9b96e9a73 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-2024-42092 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/gpio/gpio-davinci.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/a8d78984fdc105bc1a38b73e98d32b1bc4222684 https://git.kernel.org/stable/c/cd75721984337c38a12aeca33ba301d31ca4b3fd https://git.kernel.org/stable/c/e44a83bf15c4db053ac6dfe96a23af184c9136d9 https://git.kernel.org/stable/c/70b48899f3f23f98a52c5b1060aefbdc7ba7957b https://git.kernel.org/stable/c/89d7008af4945808677662a630643b5ea89c6e8d https://git.kernel.org/stable/c/2d83492259ad746b655f196cd5d1be4b3d0a3782 https://git.kernel.org/stable/c/c542e51306d5f1eba3af84daa005826223382470 https://git.kernel.org/stable/c/7aa9b96e9a73e4ec1771492d0527bd5fc5ef9164
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