From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 3C1EC376A03 for ; Sat, 15 Aug 2026 06:26:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786775191; cv=none; b=PC0I2MT+b9tppT/3BUVTsp8jKnht7OYzvvNLrJu7zaESlOKlDnxzv27KI0sFSLoRknE7zV3cBORkm3XY6ONbgj4vzQu9/aC0f6xVld64+o+SRD71GWYbF5moCi5c10VZvdXpeP5WCiqJ4nnw7a+IR9U9ADxc+neBGam0QcTrIw8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786775191; c=relaxed/simple; bh=H4kurEZn5VzSMr3Xa/b8qs1MtgHQUS/pLHf7m+gSllo=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=Bk7gt7xDDxrayJWwOWnt/1ufnqAsgHGb8+hDC0bCIDEiP1LH0h9TGppeOejp5uYHMQxzNquSCm+wHMv6M847Jgd8fiN+rqh0t9mNDgsVVP84VTIrAAhWVpFB/oTSuaDOVyY7XKMGLFr/h3Uyj3+CqV8mDC5ZSQmBRLchzBwrIfA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=F6aGWk2v; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="F6aGWk2v" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8C5ED1F000E9; Sat, 15 Aug 2026 06:26:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786775190; bh=D/rzws1QoDPPRNrJ+VM069zNIAVPdzgI47z76RPbdjk=; h=From:To:Cc:Subject:Date:Reply-To; b=F6aGWk2vdRIW3khpEnVdADGhu0iRDG2OhDCu83tmXFt2dxBMc2TA1jf3q9FG97Ln7 V4G/u4bJBJ2c4CYV/4A4bb7kK9asHHwpkf1BQY9+e/Zvf6PW3ialdluFjCA1uJgY6A fwQnaQkbBSsd1nnSMBjnonOXbtI0EqfmQedOCslU= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-72402: bpf: Mask pseudo pointer values in verifier logs Date: Sat, 15 Aug 2026 15:08:01 +0900 Message-ID: <2026081522-CVE-2026-72402-4c1c@gregkh> X-Mailer: git-send-email 2.55.0 Reply-To: , Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2212; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=tF2Si8jnD1rdDEeje2tlTc0aLAzjxhaVboLDwt6IQRU=; b=owGbwMvMwCRo6H6F97bub03G02pJDFkNDO96Txq9lt23fv4Xk4UGyZMV/nnzywRtll3HUO0x5 VR/iZ9dRywLgyATg6yYIsuXbTxH91ccUvQytD0NM4eVCWQIAxenAEyk4zbDgtVHdu24ePlBB2/K WtVnW7/FmN0JkmVYcJNVWUxRe7PnVJXA+UYL9vQHuZ6OAwA= X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit From: Greg Kroah-Hartman Description =========== In the Linux kernel, the following vulnerability has been resolved: bpf: Mask pseudo pointer values in verifier logs print_bpf_insn() masks ldimm64 immediates for pointer-bearing pseudo sources when pointer leaks are not allowed, but the mask only covers BPF_PSEUDO_MAP_FD and BPF_PSEUDO_MAP_VALUE. BPF_PSEUDO_MAP_IDX, BPF_PSEUDO_MAP_IDX_VALUE, and BPF_PSEUDO_BTF_ID can also be resolved to kernel pointer values before the verifier log prints the instruction. Include them in the existing pointer classification so the log prints 0x0 instead of the rewritten address. The Linux kernel CVE team has assigned CVE-2026-72402 to this issue. Affected and fixed versions =========================== Issue introduced in 5.10 with commit 4976b718c3551faba2c0616ef55ebeb74db1c5ca and fixed in 7.1.5 with commit 1c53d16b174dd9e02243fc0e85089e2aa6a0d21a Issue introduced in 5.10 with commit 4976b718c3551faba2c0616ef55ebeb74db1c5ca and fixed in 7.2-rc2 with commit 72a85e9464a5332fb2cd7efd26d9295275ceda2d 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-2026-72402 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: kernel/bpf/disasm.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/1c53d16b174dd9e02243fc0e85089e2aa6a0d21a https://git.kernel.org/stable/c/72a85e9464a5332fb2cd7efd26d9295275ceda2d