VulnerabilityPublished 28 Aug 2026Updated 21 Oct 2026

CVE-2026-80704: Linux kernel · drm/amd/display: use proper context for logging

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in f556bc844cc4423e5ad41ae41a4c24f1cf75b978 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 13:47 UTC

Severity

Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in f556bc844cc4423e5ad41ae41a4c24f1cf75b978, a94e62b7c7018fcfe0251e53fa96af30f12d923a, 02647d98340738f918690ed227fdcf154db1b84a +2

Exploitation evidence

Disclosed: evidence found.
CVE published 28 Aug 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.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 1296423bf23c7a58133970e223b1f47ec6570308, < f556bc844cc4423e5ad41ae41a4c24f1cf75b978	Fixed in f556bc844cc4423e5ad41ae41a4c24f1cf75b978
LinuxLinux	Affected ≥ 1296423bf23c7a58133970e223b1f47ec6570308, < a94e62b7c7018fcfe0251e53fa96af30f12d923a	Fixed in a94e62b7c7018fcfe0251e53fa96af30f12d923a
LinuxLinux	Affected ≥ 1296423bf23c7a58133970e223b1f47ec6570308, < 02647d98340738f918690ed227fdcf154db1b84a	Fixed in 02647d98340738f918690ed227fdcf154db1b84a
LinuxLinux	Affected ≥ 1296423bf23c7a58133970e223b1f47ec6570308, < 114b42507b6a23d9d24e24e4ef165233332c64d4	Fixed in 114b42507b6a23d9d24e24e4ef165233332c64d4
LinuxLinux	Affected ≥ 1296423bf23c7a58133970e223b1f47ec6570308, < 07b52a41765722ec971e0cd9739b140bf4933998	Fixed in 07b52a41765722ec971e0cd9739b140bf4933998
LinuxLinux	Affected =4.17	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: use proper context for logging The same as the rest of the code, get_ss_info_from_atombios() uses calc_pll_cs->ctx->logger for logging. But calc_pll_cs->ctx is initialized only later in calc_pll_max_vco_construct(). Therefore, any output using DC_LOG_SYNC() leads to a NULL pointer deference in get_ss_info_from_atombios(). According to Sashiko, the very same problem exists in dce112_get_pix_clk_dividers() and dcn3_get_pix_clk_dividers() too. To avoid accessing the NULL context, use clk_src->base.ctx->logger everywhere. That context in base is initialized earlier in dce110_clk_src_construct() and dce112_clk_src_construct(). Before get_ss_info_from_atombios() or Sashiko's get_pix_clk_dividers functions above are actually called. This is done by redefining DC_LOGGER to CTX->logger. Before: dce110_clk_src_construct() did: -> sets clk_src->base.ctx = ctx; -> ss_info_from_atombios_create() -> get_ss_info_from_atombios() <- uses calc_pll_cs->ctx # BOOM -> calc_pll_max_vco_construct() <- sets calc_pll_cs->ctx After: dce110_clk_src_construct() does: -> sets clk_src->base.ctx = ctx; -> ss_info_from_atombios_create() -> get_ss_info_from_atombios() <- uses clk_src->base.ctx (cherry picked from commit 6f16fcbb0c46a87e3d9685407e906573d60104b0)

References

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