Answer in brief
CVE-2026-98754 records a Unknown severity vulnerability in tty: vcc: hold port lock when clearing tty pointer in vcc_cleanup. 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.
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). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <88f6ecb058801e9ce7b9aabc966530118d7cd53c || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <821050631750e982007c0856c119346edba51cae || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1a9fb9eaeb69b1f6c00bed09289a33d9fe1e7ae4 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <03b49c991abb8d021ca6fe51cd173447236b0552 || >=0 <6.12.113 || >=0 <6.18.56 || >=0 <7.2.10 | 88f6ecb058801e9ce7b9aabc966530118d7cd53c, 821050631750e982007c0856c119346edba51cae, 1a9fb9eaeb69b1f6c00bed09289a33d9fe1e7ae4, 03b49c991abb8d021ca6fe51cd173447236b0552, 6.12.113, 6.18.56, 7.2.10 |
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <57753441ef84bee3bf0e9ee1e3778d119c44aa32 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <88f6ecb058801e9ce7b9aabc966530118d7cd53c || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <821050631750e982007c0856c119346edba51cae || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1a9fb9eaeb69b1f6c00bed09289a33d9fe1e7ae4 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <03b49c991abb8d021ca6fe51cd173447236b0552 || >=0 <6.6.160 || >=0 <6.12.113 || >=0 <6.18.56 || >=0 <7.2.10 | 57753441ef84bee3bf0e9ee1e3778d119c44aa32, 88f6ecb058801e9ce7b9aabc966530118d7cd53c, 821050631750e982007c0856c119346edba51cae, 1a9fb9eaeb69b1f6c00bed09289a33d9fe1e7ae4, 03b49c991abb8d021ca6fe51cd173447236b0552, 6.6.160, 6.12.113, 6.18.56, 7.2.10 |
Published upstream
Oct 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 18, 2026
In the Linux kernel, the following vulnerability has been resolved: tty: vcc: hold port lock when clearing tty pointer in vcc_cleanup vcc_cleanup() sets port->tty to NULL without holding port->lock, racing with vcc_event() LDC callbacks that read port->tty under port->lock and then use tty->port. This can cause a use-after-free when the callback dereferences tty->port after cleanup has already destroyed and freed it.
Quoted source text, attributed separately from HOL analysis.