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Message-ID: <2025050132-CVE-2022-49818-158f@gregkh> Date: Thu, 1 May 2025 16:10:08 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...nel.org> Subject: CVE-2022-49818: mISDN: fix misuse of put_device() in mISDN_register_device() From: Greg Kroah-Hartman <gregkh@...nel.org> Description =========== In the Linux kernel, the following vulnerability has been resolved: mISDN: fix misuse of put_device() in mISDN_register_device() We should not release reference by put_device() before calling device_initialize(). The Linux kernel CVE team has assigned CVE-2022-49818 to this issue. Affected and fixed versions =========================== Issue introduced in 4.9.333 with commit d1d1aede313eb2b9a84afd60ff6cfb7c33631e0e and fixed in 4.9.334 with commit 44658d65f6b3118f595a1229d7eed74845a5e2ac Issue introduced in 4.14.299 with commit 080aabfb29b2ee9cbb8894a1d039651943d3773e and fixed in 4.14.300 with commit 81db4f182744acd004f17d7cc52dde9ea53467e6 Issue introduced in 4.19.265 with commit a636fc5a7cabd05699b5692ad838c2c7a3abec7b and fixed in 4.19.267 with commit d40b35a7922f4df3767ad6fb8ef3dc86e31d7ba3 Issue introduced in 5.4.224 with commit 2ff6b669523d3b3d253a044fa9636a67d0694995 and fixed in 5.4.225 with commit 83672c1b83d107b0d4fe0accf1bf64d8988398e6 Issue introduced in 5.10.154 with commit e77d213843e67b4373285712699b692f9c743f61 and fixed in 5.10.156 with commit 709aa1f73d3e9e9ea16e2c4e44f2874c5d2c382c Issue introduced in 5.15.78 with commit 029d5b7688a2f3a86f2a3be5a6ba9cc968c80e41 and fixed in 5.15.80 with commit 596230471da3415e92ae6b9d2a4e26f4a81cac5a Issue introduced in 6.0.8 with commit 0d4e91efcaee081e919b3c50e875ecbb84290e41 and fixed in 6.0.10 with commit 87b336aa158201dc30a318431e63e8c5b26c4156 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-2022-49818 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/isdn/mISDN/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/44658d65f6b3118f595a1229d7eed74845a5e2ac https://git.kernel.org/stable/c/81db4f182744acd004f17d7cc52dde9ea53467e6 https://git.kernel.org/stable/c/d40b35a7922f4df3767ad6fb8ef3dc86e31d7ba3 https://git.kernel.org/stable/c/83672c1b83d107b0d4fe0accf1bf64d8988398e6 https://git.kernel.org/stable/c/709aa1f73d3e9e9ea16e2c4e44f2874c5d2c382c https://git.kernel.org/stable/c/596230471da3415e92ae6b9d2a4e26f4a81cac5a https://git.kernel.org/stable/c/87b336aa158201dc30a318431e63e8c5b26c4156 https://git.kernel.org/stable/c/2d25107e111a85c56f601a5470f1780ec054e6ac
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