VulnerabilityPublished 18 Oct 2026

CVE-2026-98743: Linux kernel · ASoC: codecs: rt1017-sdca-sdw: fix uninitialized stream_config->type

Source GCVE Database

Authoritative record:CVE-2026-98743

Not known to be exploited · fixed in d195c8c763fdd0a7f74a34973f8946215a708f1e : update Linux kernel when convenient.

Data as of 26 Oct 2026, 12:55 UTC

Severity

Medium

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in d195c8c763fdd0a7f74a34973f8946215a708f1e, 7791ebf56eb4ab6b7a20252757a3029bc8068715, 174d160884199cad97413f33fe1b56027dc0d3e1 +2

Exploitation evidence

Disclosed: evidence found.
CVE published 18 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-33xw-2m9p-9fgf

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 2b7aecd58528551e6e3da58091ff7ceb4718e6be, < d195c8c763fdd0a7f74a34973f8946215a708f1e	Fixed in d195c8c763fdd0a7f74a34973f8946215a708f1e
LinuxLinux	Affected ≥ 2b7aecd58528551e6e3da58091ff7ceb4718e6be, < 7791ebf56eb4ab6b7a20252757a3029bc8068715	Fixed in 7791ebf56eb4ab6b7a20252757a3029bc8068715
LinuxLinux	Affected ≥ 2b7aecd58528551e6e3da58091ff7ceb4718e6be, < 174d160884199cad97413f33fe1b56027dc0d3e1	Fixed in 174d160884199cad97413f33fe1b56027dc0d3e1
LinuxLinux	Affected ≥ 2b7aecd58528551e6e3da58091ff7ceb4718e6be, < 30a60e74ee71de027bf1387ac20d73e863bbf77b	Fixed in 30a60e74ee71de027bf1387ac20d73e863bbf77b
LinuxLinux	Affected ≥ 2b7aecd58528551e6e3da58091ff7ceb4718e6be, < 4e337c24c0a97fcdb394f954208971de5d372066	Fixed in 4e337c24c0a97fcdb394f954208971de5d372066
LinuxLinux	Affected =6.6	Fixed in–

AI-suggested

A fix is available and has been applied to the Linux kernel source code to zero-initialize the stream_config structure. Users should update to the fixed kernel version containing this patch. No additional mitigation steps are indicated.

Description

A vulnerability in the Linux kernel ASoC codec driver rt1017-sdca-sdw was fixed by zero-initializing the stream_config structure before use. The uninitialized stream_config->type field could contain garbage data, which was then copied to stream->type, potentially causing undefined behavior. The fix involved zero-initializing stream_config so that type defaults to SDW_STREAM_PCM and refactoring to use a helper function for configuration.

References

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