Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Linux Linux — smb: Fix regression in writes when non-standard maximum write size negotiated
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U N N H 5.5 .0053 42.5 —
AFFECTED
Product Versions Fixed
Linux d08089f649a0cfb2099c8551ac47eef0cc23fdf2 – —
Linux 6.3 – 6.6.18
TIMELINE
Feb 19 Reserved by Linux
Apr 3 Published (CNA: Linux)
Aug 4 RESCORED — CVE-2024-26692 (Linux). CVSS 8.3 → 5.5 (NVD).
Description
In the Linux kernel, the following vulnerability has been resolved:
smb: Fix regression in writes when non-standard maximum write size negotiated
The conversion to netfs in the 6.3 kernel caused a regression when
maximum write size is set by the server to an unexpected value which is
not a multiple of 4096 (similarly if the user overrides the maximum
write size by setting mount parm "wsize", but sets it to a value that
is not a multiple of 4096). When negotiated write size is not a
multiple of 4096 the netfs code can skip the end of the final
page when doing large sequential writes, causing data corruption.
This section of code is being rewritten/removed due to a large
netfs change, but until that point (ie for the 6.3 kernel until now)
we can not support non-standard maximum write sizes.
Add a warning if a user specifies a wsize on mount that is not
a multiple of 4096 (and round down), also add a change where we
round down the maximum write size if the server negotiates a value
that is not a multiple of 4096 (we also have to check to make sure that
we do not round it down to zero).
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| February 19, 2024 | Reserved | Reserved by Linux |
| April 3, 2024 | Published | Published (CNA: Linux) |
| August 4, 2026 | RESCORED | RESCORED — CVE-2024-26692 (Linux). CVSS 8.3 → 5.5 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | d08089f649a0cfb2099c8551ac47eef0cc23fdf2 | — |
| Linux | Linux | — | 6.3 | 6.6.18 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2024-26692 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.