CVE-2024-49983

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: ext4: drop ppath from ext4_ext_replay_update_ex() to avoid double-free When calling ext4_force_split_extent_at() in ext4_ext_replay_update_ex(), the 'ppath' is updated but it is the 'path' that is freed, thus potentially triggering a double-free in the following process: ext4_ext_replay_update_ex ppath = path ext4_force_split_extent_at(&ppath) ext4_split_extent_at ext4_ext_insert_extent ext4_ext_create_new_leaf ext4_ext_grow_indepth ext4_find_extent if (depth > path[0].p_maxdepth) kfree(path) ---> path First freed *orig_pat...

Affected product and versions

Product

Linux Linux, linux kernel

Affected versions

>= 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 < 8c26d9e53e5fbacda0732a577e97c5a5b7882aaf, >= 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 < a34bed978364114390162c27e50fca50791c568d, >= 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 < 6367d3f04c69e2b8770b8137bd800e0784b0abbc, >= 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 < 1b558006d98b7b0b730027be0ee98973dd10ee0d, >= 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 < 3ff710662e8d86a63a39b334e9ca0cb10e5c14b0, >= 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 < 63adc9016917e6970fb0104ee5fd6770f02b2d80, >= 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 < 5c0f4cc84d3a601c99bc5e6e6eb1cbda542cce95, >= 5.10, >= 5.10 < 5.10.227, >= 5.11 < 5.15.168, >= 5.16 < 6.1.113, >= 6.2 < 6.6.55, >= 6.7 < 6.10.14, >= 6.11 < 6.11.3

Fixed versions

5.10.227, 5.15.168, 6.1.113, 6.6.55, 6.10.14, 6.11.3

Technical data

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-415