ghsa-g993-hcw2-pmmf
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
binder: check offset alignment in binder_get_object()
Commit 6d98eb95b450 ("binder: avoid potential data leakage when copying txn") introduced changes to how binder objects are copied. In doing so, it unintentionally removed an offset alignment check done through calls to binder_alloc_copy_from_buffer() -> check_buffer().
These calls were replaced in binder_get_object() with copy_from_user(), so now an explicit offset alignment check is needed here. This avoids later complications when unwinding the objects gets harder.
It is worth noting this check existed prior to commit 7a67a39320df ("binder: add function to copy binder object from buffer"), likely removed due to redundancy at the time.
{
"affected": [],
"aliases": [
"CVE-2024-26926"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-25T06:15:57Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: check offset alignment in binder_get_object()\n\nCommit 6d98eb95b450 (\"binder: avoid potential data leakage when copying\ntxn\") introduced changes to how binder objects are copied. In doing so,\nit unintentionally removed an offset alignment check done through calls\nto binder_alloc_copy_from_buffer() -\u003e check_buffer().\n\nThese calls were replaced in binder_get_object() with copy_from_user(),\nso now an explicit offset alignment check is needed here. This avoids\nlater complications when unwinding the objects gets harder.\n\nIt is worth noting this check existed prior to commit 7a67a39320df\n(\"binder: add function to copy binder object from buffer\"), likely\nremoved due to redundancy at the time.",
"id": "GHSA-g993-hcw2-pmmf",
"modified": "2024-06-26T00:31:38Z",
"published": "2024-04-25T06:30:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26926"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1d7f1049035b2060342f11eff957cf567d810bdc"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/48a1f83ca9c68518b1a783c62e6a8223144fa9fc"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/68a28f551e4690db2b27b3db716c7395f6fada12"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a2fd6dbc98be1105a1d8e9e31575da8873ef115c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a6d2a8b211c874971ee4cf3ddd167408177f6e76"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/aaef73821a3b0194a01bd23ca77774f704a04d40"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f01d6619045704d78613b14e2e0420bfdb7f1c15"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.