Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: erofs: avoid infinite loops due to corrupted subpage compact indexes Robert reported an infinite loop observed by two crafted images. The root cause is that `clusterofs` can be larger than `lclustersize` for !NONHEAD `lclusters` in corrupted subpage compact indexes, e.g.: blocksize = lclustersize = 512 lcn = 6 clusterofs = 515 Move the corresponding check for full compress indexes to `z_erofs_load_lcluster_from_disk()` to also cover subpage compact compress indexes. It also fixes the position of `m->type >= Z_EROFS_LCLUSTER_TYPE_MAX` check, since it should be placed right after `z_erofs_load_{compact,full}_lcluster()`.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 3f691aa676f29586e83e6c032713554a290418c3 before b18a82503a67a530d48f5a5b429e162749fe2c89; affected 8d2517aaeea3ab8651bb517bca8f3c8664d318ea before dbfac1b85d0753996ddfef636934d431b588dd1f; affected 8d2517aaeea3ab8651bb517bca8f3c8664d318ea before 8675447a8794983f2b7e694b378112772c17635e; affected 8d2517aaeea3ab8651bb517bca8f3c8664d318ea before e13d315ae077bb7c3c6027cc292401bc0f4ec683; affected 22438a34d383ec2789eaf450728e38abc53051f8; affected 6.6.16 before 6.6.160; affected 6.7.4 before 6.8 |
| Linux / Linux | affected 6.8; unaffected 0 before 6.8; unaffected 6.6.160 through 6.6.*; unaffected 6.12.91 through 6.12.*; unaffected 6.17.6 through 6.17.*; unaffected 6.18 through * |
CWE
No CWE identifiers supplied.