| From bippy-1.2.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2025-37851: fbdev: omapfb: Add 'plane' value check |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| fbdev: omapfb: Add 'plane' value check |
| |
| Function dispc_ovl_setup is not intended to work with the value OMAP_DSS_WB |
| of the enum parameter plane. |
| |
| The value of this parameter is initialized in dss_init_overlays and in the |
| current state of the code it cannot take this value so it's not a real |
| problem. |
| |
| For the purposes of defensive coding it wouldn't be superfluous to check |
| the parameter value, because some functions down the call stack process |
| this value correctly and some not. |
| |
| For example, in dispc_ovl_setup_global_alpha it may lead to buffer |
| overflow. |
| |
| Add check for this value. |
| |
| Found by Linux Verification Center (linuxtesting.org) with SVACE static |
| analysis tool. |
| |
| The Linux kernel CVE team has assigned CVE-2025-37851 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 2.6.33 with commit 559d67018950ced65c73358cd69c4bdd2b0c5dd6 and fixed in 5.4.293 with commit a570efb4d877adbf3db2dc95487f2ba6bfdd148a |
| Issue introduced in 2.6.33 with commit 559d67018950ced65c73358cd69c4bdd2b0c5dd6 and fixed in 5.10.237 with commit cdf41d72e8b015d9ea68f5a1c0a79624e7c312aa |
| Issue introduced in 2.6.33 with commit 559d67018950ced65c73358cd69c4bdd2b0c5dd6 and fixed in 5.15.181 with commit 09dbf22fd68c2f1a81ab89670ffa1ec3033436c4 |
| Issue introduced in 2.6.33 with commit 559d67018950ced65c73358cd69c4bdd2b0c5dd6 and fixed in 6.1.135 with commit 660a53a0694d1f3789802509fe729dd4656fc5e0 |
| Issue introduced in 2.6.33 with commit 559d67018950ced65c73358cd69c4bdd2b0c5dd6 and fixed in 6.6.88 with commit fda15c5b96b883d62fb2d84a3a1422aa87717897 |
| Issue introduced in 2.6.33 with commit 559d67018950ced65c73358cd69c4bdd2b0c5dd6 and fixed in 6.12.24 with commit 52eafaa56f8f6d6a0cdff9282b25b4acbde34edc |
| Issue introduced in 2.6.33 with commit 559d67018950ced65c73358cd69c4bdd2b0c5dd6 and fixed in 6.13.12 with commit 9b0a41589ee70529b20e1e0108d03f10c649bdc4 |
| Issue introduced in 2.6.33 with commit 559d67018950ced65c73358cd69c4bdd2b0c5dd6 and fixed in 6.14.3 with commit 4efd8ef5e40f2c7a4a91a5a9f03140bfa827da89 |
| Issue introduced in 2.6.33 with commit 559d67018950ced65c73358cd69c4bdd2b0c5dd6 and fixed in 6.15 with commit 3e411827f31db7f938a30a3c7a7599839401ec30 |
| |
| 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-2025-37851 |
| 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/video/fbdev/omap2/omapfb/dss/dispc.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/a570efb4d877adbf3db2dc95487f2ba6bfdd148a |
| https://git.kernel.org/stable/c/cdf41d72e8b015d9ea68f5a1c0a79624e7c312aa |
| https://git.kernel.org/stable/c/09dbf22fd68c2f1a81ab89670ffa1ec3033436c4 |
| https://git.kernel.org/stable/c/660a53a0694d1f3789802509fe729dd4656fc5e0 |
| https://git.kernel.org/stable/c/fda15c5b96b883d62fb2d84a3a1422aa87717897 |
| https://git.kernel.org/stable/c/52eafaa56f8f6d6a0cdff9282b25b4acbde34edc |
| https://git.kernel.org/stable/c/9b0a41589ee70529b20e1e0108d03f10c649bdc4 |
| https://git.kernel.org/stable/c/4efd8ef5e40f2c7a4a91a5a9f03140bfa827da89 |
| https://git.kernel.org/stable/c/3e411827f31db7f938a30a3c7a7599839401ec30 |
