{"apiVersion":"1.0","identifier":"CVE-2026-80704","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)","publishedAt":"2026-08-28T08:16:55","lastModifiedAt":"2026-08-28T08:16:55","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-80704","cvssScore":null,"cvssVector":"Pending","epssProbability":0.00159,"riskScore":0,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-80704","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-80704","en":"https://www.redsauce.net/en/cves/CVE-2026-80704","fr":"https://www.redsauce.net/fr/cves/CVE-2026-80704","pt":"https://www.redsauce.net/pt/cves/CVE-2026-80704","de":"https://www.redsauce.net/de/cves/CVE-2026-80704","sk":"https://www.redsauce.net/sk/cves/CVE-2026-80704","el":"https://www.redsauce.net/el/cves/CVE-2026-80704"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-80704"}}