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Message-ID: <2024051957-CVE-2024-35915-aead@gregkh> Date: Sun, 19 May 2024 10:35:29 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Subject: CVE-2024-35915: nfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet Description =========== In the Linux kernel, the following vulnerability has been resolved: nfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet syzbot reported the following uninit-value access issue [1][2]: nci_rx_work() parses and processes received packet. When the payload length is zero, each message type handler reads uninitialized payload and KMSAN detects this issue. The receipt of a packet with a zero-size payload is considered unexpected, and therefore, such packets should be silently discarded. This patch resolved this issue by checking payload size before calling each message type handler codes. The Linux kernel CVE team has assigned CVE-2024-35915 to this issue. Affected and fixed versions =========================== Issue introduced in 3.2 with commit 6a2968aaf50c and fixed in 4.19.312 with commit 11387b2effbb Issue introduced in 3.2 with commit 6a2968aaf50c and fixed in 5.4.274 with commit 03fe259649a5 Issue introduced in 3.2 with commit 6a2968aaf50c and fixed in 5.10.215 with commit 755e53bbc61b Issue introduced in 3.2 with commit 6a2968aaf50c and fixed in 5.15.154 with commit ac68d9fa09e4 Issue introduced in 3.2 with commit 6a2968aaf50c and fixed in 6.1.85 with commit b51ec7fc9f87 Issue introduced in 3.2 with commit 6a2968aaf50c and fixed in 6.6.26 with commit a946ebee45b0 Issue introduced in 3.2 with commit 6a2968aaf50c and fixed in 6.8.5 with commit 8948e30de81f Issue introduced in 3.2 with commit 6a2968aaf50c and fixed in 6.9 with commit d24b03535e5e 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-2024-35915 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: net/nfc/nci/core.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/11387b2effbb55f58dc2111ef4b4b896f2756240 https://git.kernel.org/stable/c/03fe259649a551d336a7f20919b641ea100e3fff https://git.kernel.org/stable/c/755e53bbc61bc1aff90eafa64c8c2464fd3dfa3c https://git.kernel.org/stable/c/ac68d9fa09e410fa3ed20fb721d56aa558695e16 https://git.kernel.org/stable/c/b51ec7fc9f877ef869c01d3ea6f18f6a64e831a7 https://git.kernel.org/stable/c/a946ebee45b09294c8b0b0e77410b763c4d2817a https://git.kernel.org/stable/c/8948e30de81faee87eeee01ef42a1f6008f5a83a https://git.kernel.org/stable/c/d24b03535e5eb82e025219c2f632b485409c898f
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