| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2022-48756: drm/msm/dsi: invalid parameter check in msm_dsi_phy_enable |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/msm/dsi: invalid parameter check in msm_dsi_phy_enable |
| |
| The function performs a check on the "phy" input parameter, however, it |
| is used before the check. |
| |
| Initialize the "dev" variable after the sanity check to avoid a possible |
| NULL pointer dereference. |
| |
| Addresses-Coverity-ID: 1493860 ("Null pointer dereference") |
| |
| The Linux kernel CVE team has assigned CVE-2022-48756 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.3 with commit 5c8290284402bf7d2c12269402b3177b899c78b7 and fixed in 4.14.265 with commit 6d9f8ba28f3747ca0f910a363e46f1114856dbbe |
| Issue introduced in 4.3 with commit 5c8290284402bf7d2c12269402b3177b899c78b7 and fixed in 4.19.228 with commit ca63eeb70fcb53c42e1fe54e1735a54d8e7759fd |
| Issue introduced in 4.3 with commit 5c8290284402bf7d2c12269402b3177b899c78b7 and fixed in 5.4.176 with commit 581317b1f001b7509041544d7019b75571daa100 |
| Issue introduced in 4.3 with commit 5c8290284402bf7d2c12269402b3177b899c78b7 and fixed in 5.10.96 with commit 79c0b5287ded74f4eacde4dfd8aa0a76cbd853b5 |
| Issue introduced in 4.3 with commit 5c8290284402bf7d2c12269402b3177b899c78b7 and fixed in 5.15.19 with commit 56480fb10b976581a363fd168dc2e4fbee87a1a7 |
| Issue introduced in 4.3 with commit 5c8290284402bf7d2c12269402b3177b899c78b7 and fixed in 5.16.5 with commit 2b7e7df1eacd280e561ede3e977853606871c951 |
| Issue introduced in 4.3 with commit 5c8290284402bf7d2c12269402b3177b899c78b7 and fixed in 5.17 with commit 5e761a2287234bc402ba7ef07129f5103bcd775c |
| |
| 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-2022-48756 |
| 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/msm/dsi/phy/dsi_phy.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/6d9f8ba28f3747ca0f910a363e46f1114856dbbe |
| https://git.kernel.org/stable/c/ca63eeb70fcb53c42e1fe54e1735a54d8e7759fd |
| https://git.kernel.org/stable/c/581317b1f001b7509041544d7019b75571daa100 |
| https://git.kernel.org/stable/c/79c0b5287ded74f4eacde4dfd8aa0a76cbd853b5 |
| https://git.kernel.org/stable/c/56480fb10b976581a363fd168dc2e4fbee87a1a7 |
| https://git.kernel.org/stable/c/2b7e7df1eacd280e561ede3e977853606871c951 |
| https://git.kernel.org/stable/c/5e761a2287234bc402ba7ef07129f5103bcd775c |
