Answer in brief
CVE-2026-80697 records a Unknown severity vulnerability in erofs: ensure valid f_path for page cache sharing. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), 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.
A CVSS score is not reported in the current record. 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), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=04ba248d02d9eaa3d9077b00a6134caa75fa3e90 <3879657c4ffd81b9a42cf575fc6cb60201032587 || >=e187bc02f8fa4226d62814592cf064ee4557c470 <96b2dbbe58a1ea5df8d29c2fe24b5f04715f4443 || 7368bec565bac3e536cd43579dbde1e715e6ba61 || b2f3d94ea310bea9d36d53e9d9b3f45e86c1d893 || 744b23aa430d52f5c8e4dbff7d71496d6643bed2 || 8344bdf0629457e532797b42d9d2bbf2a2900bbf || 5c942ad7df75925ee166e7f0fb36892d8dde376b || >=5.15.217 <5.16 || >=6.1.184 <6.2 || >=6.6.145 <6.7 || >=6.12.96 <6.13 || >=6.18.39 <6.19 | 3879657c4ffd81b9a42cf575fc6cb60201032587, 96b2dbbe58a1ea5df8d29c2fe24b5f04715f4443, 5.16, 6.2, 6.7, 6.13, 6.19 |
| Linux/Linuxgeneric | >=7.1.4 <7.1.8 | 7.1.8 |
| Linux/Linuxgeneric | >=5ef3208e3be50aa08b4e7a2832f34e16d42c08b3 <3879657c4ffd81b9a42cf575fc6cb60201032587 || >=5ef3208e3be50aa08b4e7a2832f34e16d42c08b3 <96b2dbbe58a1ea5df8d29c2fe24b5f04715f4443 | 3879657c4ffd81b9a42cf575fc6cb60201032587, 96b2dbbe58a1ea5df8d29c2fe24b5f04715f4443 |
| Linux/Linuxgeneric | 7.0 | Not reported |
Published upstream
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 28, 2026
In the Linux kernel, the following vulnerability has been resolved: erofs: ensure valid f_path for page cache sharing Previously, backing files for page cache sharing were set up with f_path left as NULL (only f_inode was valid). It worked, but a recent mincore fix relies on f_path.mnt and crashes (found by "erofs/028" on 7.2-rc4): BUG: kernel NULL pointer dereference, address: 0000000000000018 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: Oops: 0000 [#1] SMP PTI CPU: 3 UID: 0 PID: 675528 Comm: fincore Not tainted 7.2.0-rc4-00002-g[]-dirty #1 PREEMPT(lazy) Hardware name: Red Hat KVM, BIOS 1.16.0-4.al8 04/01/2014 RIP: 0010:__do_sys_mincore+0xc0/0x2c0 ... Specify valid paths using valid disconnected dentries together with erofs_ishare_mnt instead of leaving f_path empty, so they are more like real backing files in a pseudo filesystem and standard backing_file_open() can be used directly.
Quoted source text, attributed separately from HOL analysis.