| 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-2022-49336: drm/etnaviv: check for reaped mapping in etnaviv_iommu_unmap_gem |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/etnaviv: check for reaped mapping in etnaviv_iommu_unmap_gem |
| |
| When the mapping is already reaped the unmap must be a no-op, as we |
| would otherwise try to remove the mapping twice, corrupting the involved |
| data structures. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49336 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.5 with commit a8c21a5451d831e67b7a6fb910f9ca8bc7b43554 and fixed in 5.4.198 with commit 19323b3671a85788569d15685c8f83a05ec48cbb |
| Issue introduced in 4.5 with commit a8c21a5451d831e67b7a6fb910f9ca8bc7b43554 and fixed in 5.10.121 with commit 436cff507f2a41230baacc3e2ef1d3b2d2653f40 |
| Issue introduced in 4.5 with commit a8c21a5451d831e67b7a6fb910f9ca8bc7b43554 and fixed in 5.15.46 with commit 03bd455a79f69d97fee3e3b212ab754442f10e5c |
| Issue introduced in 4.5 with commit a8c21a5451d831e67b7a6fb910f9ca8bc7b43554 and fixed in 5.17.14 with commit 461c0fdf9434188875da9f10cfc86065866bb797 |
| Issue introduced in 4.5 with commit a8c21a5451d831e67b7a6fb910f9ca8bc7b43554 and fixed in 5.18.3 with commit 64f4edec081cb7c97c5e928529d0e1b0dbbffb83 |
| Issue introduced in 4.5 with commit a8c21a5451d831e67b7a6fb910f9ca8bc7b43554 and fixed in 5.19 with commit e168c25526cd0368af098095c2ded4a008007e1b |
| |
| 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-2022-49336 |
| 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/etnaviv/etnaviv_mmu.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/19323b3671a85788569d15685c8f83a05ec48cbb |
| https://git.kernel.org/stable/c/436cff507f2a41230baacc3e2ef1d3b2d2653f40 |
| https://git.kernel.org/stable/c/03bd455a79f69d97fee3e3b212ab754442f10e5c |
| https://git.kernel.org/stable/c/461c0fdf9434188875da9f10cfc86065866bb797 |
| https://git.kernel.org/stable/c/64f4edec081cb7c97c5e928529d0e1b0dbbffb83 |
| https://git.kernel.org/stable/c/e168c25526cd0368af098095c2ded4a008007e1b |
