Answer in brief
CVE-2026-53388 records a High severity (CVSS 7.8) vulnerability in fuse: re-lock request before replacing page cache folio. 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.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ce534fb052928ce556639d7ecf01cbf4e01321e1 <7c18691e0cfda29672f79bafde8abdb7710674f6 || >=ce534fb052928ce556639d7ecf01cbf4e01321e1 <5927b43a4f8d89e86930f524bf63e9c7e66f61b4 || >=ce534fb052928ce556639d7ecf01cbf4e01321e1 <030fe3e9d8abdee303dd7e9e42f45082d382a407 || >=ce534fb052928ce556639d7ecf01cbf4e01321e1 <46473ddccdc5065033e397d6e62c280dbcd3d9c2 || >=ce534fb052928ce556639d7ecf01cbf4e01321e1 <af2892249d982a1c036ca456cc135374e68b6677 || >=ce534fb052928ce556639d7ecf01cbf4e01321e1 <0223f452532d9cd8a5e87c45de828fd93c99bd25 || >=ce534fb052928ce556639d7ecf01cbf4e01321e1 <e28db6ac4792d065ab32565fd9f0a2361c3d4666 || >=ce534fb052928ce556639d7ecf01cbf4e01321e1 <a078484921052d0badd827fcc2770b5cfc1d4120 | 7c18691e0cfda29672f79bafde8abdb7710674f6, 5927b43a4f8d89e86930f524bf63e9c7e66f61b4, 030fe3e9d8abdee303dd7e9e42f45082d382a407, 46473ddccdc5065033e397d6e62c280dbcd3d9c2, af2892249d982a1c036ca456cc135374e68b6677, 0223f452532d9cd8a5e87c45de828fd93c99bd25, e28db6ac4792d065ab32565fd9f0a2361c3d4666, a078484921052d0badd827fcc2770b5cfc1d4120 |
| Linux/Linuxgeneric | 2.6.35 | Not reported |
Published upstream
Jul 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 17, 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: fuse: re-lock request before replacing page cache folio fuse_try_move_folio() unlocks the request on entry but does not re-lock it on the success path. This means fuse_chan_abort() can end the request and free the fuse_io_args (eg fuse_readpages_end()) while the subsequent copy chain logic after fuse_try_move_folio() accesses the fuse_io_args, leading to use-after-free issues. Fix this by calling lock_request() before replace_page_cache_folio(). This ensures the request is locked on the success path which will prevent the fuse_io_args from being freed while the later copying logic runs, and also ensures that the ap->folios[i]->mapping is never null since ap->folios[i] will always point to the newfolio after replace_page_cache_folio().
Quoted source text, attributed separately from HOL analysis.