| 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-2024-53136: mm: revert "mm: shmem: fix data-race in shmem_getattr()" |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| mm: revert "mm: shmem: fix data-race in shmem_getattr()" |
| |
| Revert d949d1d14fa2 ("mm: shmem: fix data-race in shmem_getattr()") as |
| suggested by Chuck [1]. It is causing deadlocks when accessing tmpfs over |
| NFS. |
| |
| As Hugh commented, "added just to silence a syzbot sanitizer splat: added |
| where there has never been any practical problem". |
| |
| The Linux kernel CVE team has assigned CVE-2024-53136 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.19.323 with commit 9fb9703cd43ee20a6de8ccdef991677b7274cec0 and fixed in 4.19.325 with commit 36b537e8f302f670c7cf35d88a3a294443e32d52 |
| Issue introduced in 5.4.285 with commit 7cc30ada84323be19395094d567579536e0d187e and fixed in 5.4.287 with commit a3c65022d89d5baa2cea8e87a6de983ea305f14c |
| Issue introduced in 5.10.229 with commit bda1a99a0dd644f31a87d636ac624eeb975cb65a and fixed in 5.10.231 with commit 57cc8d253099d1b8627f0fb487ee011d9158ccc9 |
| Issue introduced in 5.15.171 with commit 3d9528484480e8f4979b3a347930ed383be99f89 and fixed in 5.15.174 with commit d3f9d88c2c03b2646ace336236adca19f7697bd3 |
| Issue introduced in 6.1.116 with commit 82cae1e30bd940253593c2d4f16d88343d1358f4 and fixed in 6.1.119 with commit 5874c1150e77296565ad6e495ef41fbf87570d14 |
| Issue introduced in 6.6.60 with commit edd1f905050686fdc4cfe233d818469fdf7d5ff8 and fixed in 6.6.63 with commit 64e67e8694252c1bf01b802ee911be3fee62c36b |
| Issue introduced in 6.11.7 with commit ffd56612566bc23877c8f45def2801f3324a222a and fixed in 6.11.10 with commit 901dc2ad7c3789fa87dc3956f6697c5d62d5cf7e |
| |
| 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-2024-53136 |
| 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: |
| mm/shmem.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/36b537e8f302f670c7cf35d88a3a294443e32d52 |
| https://git.kernel.org/stable/c/a3c65022d89d5baa2cea8e87a6de983ea305f14c |
| https://git.kernel.org/stable/c/57cc8d253099d1b8627f0fb487ee011d9158ccc9 |
| https://git.kernel.org/stable/c/d3f9d88c2c03b2646ace336236adca19f7697bd3 |
| https://git.kernel.org/stable/c/5874c1150e77296565ad6e495ef41fbf87570d14 |
| https://git.kernel.org/stable/c/64e67e8694252c1bf01b802ee911be3fee62c36b |
| https://git.kernel.org/stable/c/901dc2ad7c3789fa87dc3956f6697c5d62d5cf7e |
| https://git.kernel.org/stable/c/d1aa0c04294e29883d65eac6c2f72fe95cc7c049 |
