| 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-2025-37937: objtool, media: dib8000: Prevent divide-by-zero in dib8000_set_dds() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| objtool, media: dib8000: Prevent divide-by-zero in dib8000_set_dds() |
| |
| If dib8000_set_dds()'s call to dib8000_read32() returns zero, the result |
| is a divide-by-zero. Prevent that from happening. |
| |
| Fixes the following warning with an UBSAN kernel: |
| |
| drivers/media/dvb-frontends/dib8000.o: warning: objtool: dib8000_tune() falls through to next function dib8096p_cfg_DibRx() |
| |
| The Linux kernel CVE team has assigned CVE-2025-37937 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 3.10 with commit 173a64cb3fcff1993b2aa8113e53fd379f6a968f and fixed in 5.4.292 with commit 536f7f3595ef8187cfa9ea50d7d24fcf4e84e166 |
| Issue introduced in 3.10 with commit 173a64cb3fcff1993b2aa8113e53fd379f6a968f and fixed in 5.10.236 with commit 976a85782246a29ba0f6d411a7a4f524cb9ea987 |
| Issue introduced in 3.10 with commit 173a64cb3fcff1993b2aa8113e53fd379f6a968f and fixed in 5.15.180 with commit 9b76b198cf209797abcb1314c18ddeb90fe0827b |
| Issue introduced in 3.10 with commit 173a64cb3fcff1993b2aa8113e53fd379f6a968f and fixed in 6.1.134 with commit b9249da6b0ed56269d4f21850df8e5b35dab50bd |
| Issue introduced in 3.10 with commit 173a64cb3fcff1993b2aa8113e53fd379f6a968f and fixed in 6.6.87 with commit 75b42dfe87657ede3da3f279bd6b1b16d69af954 |
| Issue introduced in 3.10 with commit 173a64cb3fcff1993b2aa8113e53fd379f6a968f and fixed in 6.12.23 with commit cd80277f652138d2619f149f86ae6d17bce721d1 |
| Issue introduced in 3.10 with commit 173a64cb3fcff1993b2aa8113e53fd379f6a968f and fixed in 6.13.11 with commit c8430e72b99936c206b37a8e2daebb3f8df7f2d8 |
| Issue introduced in 3.10 with commit 173a64cb3fcff1993b2aa8113e53fd379f6a968f and fixed in 6.14.2 with commit 6cfe46036b163e5a0f07c6b705b518148e1a8b2f |
| Issue introduced in 3.10 with commit 173a64cb3fcff1993b2aa8113e53fd379f6a968f and fixed in 6.15 with commit e63d465f59011dede0a0f1d21718b59a64c3ff5c |
| |
| 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-2025-37937 |
| 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/media/dvb-frontends/dib8000.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/536f7f3595ef8187cfa9ea50d7d24fcf4e84e166 |
| https://git.kernel.org/stable/c/976a85782246a29ba0f6d411a7a4f524cb9ea987 |
| https://git.kernel.org/stable/c/9b76b198cf209797abcb1314c18ddeb90fe0827b |
| https://git.kernel.org/stable/c/b9249da6b0ed56269d4f21850df8e5b35dab50bd |
| https://git.kernel.org/stable/c/75b42dfe87657ede3da3f279bd6b1b16d69af954 |
| https://git.kernel.org/stable/c/cd80277f652138d2619f149f86ae6d17bce721d1 |
| https://git.kernel.org/stable/c/c8430e72b99936c206b37a8e2daebb3f8df7f2d8 |
| https://git.kernel.org/stable/c/6cfe46036b163e5a0f07c6b705b518148e1a8b2f |
| https://git.kernel.org/stable/c/e63d465f59011dede0a0f1d21718b59a64c3ff5c |
