From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 599CB1A3A80 for ; Wed, 26 Feb 2025 01:57:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740535062; cv=none; b=paj0obERbSds7XaOSc0DPNDlfgof97k2qEAuaRU/76F8k3degNGybpXCLApe9qyOGK53mVSu0++Wwfdf8Y7xmgQr4xsBkicuRiXtAaV9gueFHCSFVXqWJL1dIduk9M/OsLlZv4Z61fQysONcZkf8cb4nh8sMXhfxUDjBSuE2kGc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740535062; c=relaxed/simple; bh=PRpzLTxplrEr1px4jzJSneaXYAHHkjK+NeFxmuoY3dg=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=crLFAmK/1qtPNhrKJNYZNycj4LThHj6yO7NE53DbBh2YSow6naQvXaBTRsLl4MzLLzKI0q5T6E00jtRUOs+gWKkH5H/GqW1BX+DxV4jNDLmihCS4Roq9zKCTE6x+Rjlnu1RYpzlqR4jBbgLudG07bTm810jGkvfzje9SOSKSsIQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=r5LyXCuy; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="r5LyXCuy" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2A6C3C4CEE6; Wed, 26 Feb 2025 01:57:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1740535062; bh=PRpzLTxplrEr1px4jzJSneaXYAHHkjK+NeFxmuoY3dg=; h=From:To:Cc:Subject:Date:Reply-to:From; b=r5LyXCuymfIMuqHZLMDfEm7BieMTdHYrLqU4NyTO2mJZLXcrnXElmwskmdIibaThR YNW0rQWJv5W2kgQb6UZojjkcBA8IIN5abmDcjOFDE5nSpNkDzMReXNbFyVITWhB/11 Ip6g3CElEkmagXipo4Sr1YgdwvrKO1bwFnHPw1Vk= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2022-49055: drm/amdkfd: Check for potential null return of kmalloc_array() Date: Wed, 26 Feb 2025 02:54:20 +0100 Message-ID: <2025022652-CVE-2022-49055-b2a2@gregkh> X-Mailer: git-send-email 2.48.1 Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Reply-to: , X-Developer-Signature: v=1; a=openpgp-sha256; l=2708; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=PRpzLTxplrEr1px4jzJSneaXYAHHkjK+NeFxmuoY3dg=; b=owGbwMvMwCRo6H6F97bub03G02pJDOn7Sgy+cVxboJDJ9s60wUDertFk5kEG5fzFX2blaClkO L6SvTe9I5aFQZCJQVZMkeXLNp6j+ysOKXoZ2p6GmcPKBDKEgYtTACZSNY1hwbzq8w+Pfr6Un9G4 eeZWgSMv0sSjExnmB69+X/Lg8IeSmoQJceWBf7fu2DTRFAA= X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit Description =========== In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Check for potential null return of kmalloc_array() As the kmalloc_array() may return null, the 'event_waiters[i].wait' would lead to null-pointer dereference. Therefore, it is better to check the return value of kmalloc_array() to avoid this confusion. The Linux kernel CVE team has assigned CVE-2022-49055 to this issue. Affected and fixed versions =========================== Fixed in 4.9.311 with commit 32cf90a521dcc0f136db7ee5ba32bfe5f79e460e Fixed in 4.14.276 with commit 40bf32dbfef866c83a3e74800b81d79e52b6d20b Fixed in 4.19.239 with commit 94869bb0de69a812f70231b0eb480bb2f7ae73a6 Fixed in 5.4.190 with commit c7a268b33882d5feaafd29c1734456f41ba41396 Fixed in 5.10.112 with commit 1d7a5aae884ca727d41c7ed15d4c82fdb67c040c Fixed in 5.15.35 with commit f2658d5966bcee8c3eb487875f459756d4f7cdfc Fixed in 5.17.4 with commit 0a692c625e373fef692ffbc7fc41f8a025f01cb7 Fixed in 5.18 with commit ebbb7bb9e80305820dc2328a371c1b35679f2667 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-2022-49055 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/gpu/drm/amd/amdkfd/kfd_events.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/32cf90a521dcc0f136db7ee5ba32bfe5f79e460e https://git.kernel.org/stable/c/40bf32dbfef866c83a3e74800b81d79e52b6d20b https://git.kernel.org/stable/c/94869bb0de69a812f70231b0eb480bb2f7ae73a6 https://git.kernel.org/stable/c/c7a268b33882d5feaafd29c1734456f41ba41396 https://git.kernel.org/stable/c/1d7a5aae884ca727d41c7ed15d4c82fdb67c040c https://git.kernel.org/stable/c/f2658d5966bcee8c3eb487875f459756d4f7cdfc https://git.kernel.org/stable/c/0a692c625e373fef692ffbc7fc41f8a025f01cb7 https://git.kernel.org/stable/c/ebbb7bb9e80305820dc2328a371c1b35679f2667