Answer in brief
CVE-2024-49983 records a High severity (CVSS 7.8) vulnerability in ext4: drop ppath from ext4_ext_replay_update_ex() to avoid double-free. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 <8c26d9e53e5fbacda0732a577e97c5a5b7882aaf || >=8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 <a34bed978364114390162c27e50fca50791c568d || >=8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 <6367d3f04c69e2b8770b8137bd800e0784b0abbc || >=8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 <1b558006d98b7b0b730027be0ee98973dd10ee0d || >=8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 <3ff710662e8d86a63a39b334e9ca0cb10e5c14b0 || >=8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 <63adc9016917e6970fb0104ee5fd6770f02b2d80 || >=8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 <5c0f4cc84d3a601c99bc5e6e6eb1cbda542cce95 | 8c26d9e53e5fbacda0732a577e97c5a5b7882aaf, a34bed978364114390162c27e50fca50791c568d, 6367d3f04c69e2b8770b8137bd800e0784b0abbc, 1b558006d98b7b0b730027be0ee98973dd10ee0d, 3ff710662e8d86a63a39b334e9ca0cb10e5c14b0, 63adc9016917e6970fb0104ee5fd6770f02b2d80, 5c0f4cc84d3a601c99bc5e6e6eb1cbda542cce95 |
| Linux/Linuxgeneric | 5.10 | Not reported |
Published upstream
Oct 21, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
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_path = path = NULL ---> null ppath kfree(path) ---> path double-free !!! So drop the unnecessary ppath and use path directly to avoid this problem. And use ext4_find_extent() directly to update path, avoiding unnecessary memory allocation and freeing. Also, propagate the error returned by ext4_find_extent() instead of using strange error codes.
Quoted source text, attributed separately from HOL analysis.