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CVE-2024-38570

Status Candidate

Overview

In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix potential glock use-after-free on unmount When a DLM lockspace is released and there ares still locks in that lockspace, DLM will unlock those locks automatically. Commit fb6791d100d1b started exploiting this behavior to speed up filesystem unmount: gfs2 would simply free glocks it didn't want to unlock and then release the lockspace. This didn't take the bast callbacks for asynchronous lock contention notifications into account, which remain active until until a lock is unlocked or its lockspace is released. To prevent those callbacks from accessing deallocated objects, put the glocks that should not be unlocked on the sd_dead_glocks list, release the lockspace, and only then free those glocks. As an additional measure, ignore unexpected ast and bast callbacks if the receiving glock is dead.

Related Files

Ubuntu Security Notice USN-7028-2
Posted Oct 18, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 7028-2 - It was discovered that the JFS file system contained an out-of-bounds read vulnerability when printing xattr debug information. A local attacker could use this to cause a denial of service. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2021-47188, CVE-2022-48863, CVE-2023-52809, CVE-2024-26651, CVE-2024-26677, CVE-2024-26851, CVE-2024-27437, CVE-2024-38570, CVE-2024-38583, CVE-2024-39480, CVE-2024-39495, CVE-2024-42224
SHA-256 | 98691b52dc361923ae789d46853b1631bac1471d52e1e8f5c5bf3183938d9021
Ubuntu Security Notice USN-7022-3
Posted Oct 10, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 7022-3 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

tags | advisory, kernel
systems | linux, ubuntu
advisories | CVE-2021-47188, CVE-2024-26677, CVE-2024-26787, CVE-2024-27012, CVE-2024-38570, CVE-2024-42160, CVE-2024-42228
SHA-256 | abe3896117665188580a1dbccbf924257f2bb30260e8e6292a0ede48e9e053f6
Ubuntu Security Notice USN-7021-4
Posted Oct 3, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 7021-4 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

tags | advisory, kernel
systems | linux, ubuntu
advisories | CVE-2024-26677, CVE-2024-38570, CVE-2024-39496
SHA-256 | f5bd65d2898e9829d211a6a95b234a34eb25f17b8ac37caf94966dce73810534
Ubuntu Security Notice USN-7039-1
Posted Sep 26, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 7039-1 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

tags | advisory, kernel
systems | linux, ubuntu
advisories | CVE-2021-47181, CVE-2022-48791, CVE-2022-48838, CVE-2022-48850, CVE-2022-48851, CVE-2022-48863, CVE-2023-52809, CVE-2024-26677, CVE-2024-26733, CVE-2024-27437, CVE-2024-38570, CVE-2024-42154, CVE-2024-42228
SHA-256 | dfba7d8e80b84fb47dc725d81c166af93f650cff7e694ffb3bd882ed52b39a79
Ubuntu Security Notice USN-7021-2
Posted Sep 24, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 7021-2 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

tags | advisory, kernel
systems | linux, ubuntu
advisories | CVE-2024-26677, CVE-2024-38570, CVE-2024-39494, CVE-2024-39496
SHA-256 | d463b70754ae77b8d76a2f63079f954ac5540780f82f494a64ef54d0fd4ac7ef
Ubuntu Security Notice USN-7028-1
Posted Sep 23, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 7028-1 - It was discovered that the JFS file system contained an out-of-bounds read vulnerability when printing xattr debug information. A local attacker could use this to cause a denial of service. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2021-47188, CVE-2022-48863, CVE-2023-52809, CVE-2024-26651, CVE-2024-26677, CVE-2024-26851, CVE-2024-27437, CVE-2024-38570, CVE-2024-38583, CVE-2024-39480, CVE-2024-39495, CVE-2024-42224
SHA-256 | 7de5ce15aa6cad3ce493ec92fd8b9feaa278435231abe1f16c95487428745116
Ubuntu Security Notice USN-7022-1
Posted Sep 19, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 7022-1 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

tags | advisory, kernel
systems | linux, ubuntu
advisories | CVE-2021-47188, CVE-2022-48863, CVE-2024-26677, CVE-2024-26787, CVE-2024-38570, CVE-2024-39494, CVE-2024-42160
SHA-256 | 10f0034b7cdebb69d837eb5ae2e64937be5df9d0a9b9327db52166eda673ab8b
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