{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90397","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-11T19:38:34.811Z","datePublished":"2026-09-17T16:09:28.967Z","dateUpdated":"2026-09-17T16:09:28.967Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-17T16:09:28.967Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: qcom: scm: Fix NULL dereference in IRQ handler before __scm is published\n\nIn qcom_scm_probe(), devm_request_threaded_irq() is called before\nsmp_store_release(&__scm, scm). Two paths can dereference __scm before\nit is published, both causing a NULL pointer dereference.\n\nThe IRQ handler receives scm via its data argument but passes only wq_ctx\nto qcom_scm_waitq_wakeup() and qcom_scm_get_completion(), which then\ndereference __scm directly. Thread scm through both functions so the IRQ\nhandler path never touches __scm.\n\nNon-atomic SMC calls made during probe (e.g. from qcom_tzmem_init via\nqcom_scm_shm_bridge_enable) can return WAITQ_SLEEP, causing\nqcom_scm_wait_for_wq_completion() to run before __scm is published and\ndereference it. Add platform_set_drvdata(pdev, scm) early in probe and\nchange qcom_scm_wait_for_wq_completion() to take the device pointer and\nuse dev_get_drvdata() to reach scm, removing any dependency on __scm."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/qcom/qcom_scm-smc.c","drivers/firmware/qcom/qcom_scm.c","drivers/firmware/qcom/qcom_scm.h"],"versions":[{"version":"6bf32599223634294cdc6efb359ffaab1d68073c","lessThan":"b451f38cb7f5bca78484362347f039c08c94de95","status":"affected","versionType":"git"},{"version":"6bf32599223634294cdc6efb359ffaab1d68073c","lessThan":"1d753df5899ec356272d08bc4718e82844e4bdf0","status":"affected","versionType":"git"},{"version":"6bf32599223634294cdc6efb359ffaab1d68073c","lessThan":"f312ef5026678f14caf1378c5f7fffdf667f9c81","status":"affected","versionType":"git"},{"version":"6bf32599223634294cdc6efb359ffaab1d68073c","lessThan":"966d23c7e68ea32679275a7e3d2383181002c868","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/qcom/qcom_scm-smc.c","drivers/firmware/qcom/qcom_scm.c","drivers/firmware/qcom/qcom_scm.h"],"versions":[{"version":"6.3","status":"affected"},{"version":"0","lessThan":"6.3","status":"unaffected","versionType":"semver"},{"version":"6.12.110","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.52","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.6","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"7.3-rc1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/b451f38cb7f5bca78484362347f039c08c94de95"},{"url":"https://git.kernel.org/stable/c/1d753df5899ec356272d08bc4718e82844e4bdf0"},{"url":"https://git.kernel.org/stable/c/f312ef5026678f14caf1378c5f7fffdf667f9c81"},{"url":"https://git.kernel.org/stable/c/966d23c7e68ea32679275a7e3d2383181002c868"}],"title":"firmware: qcom: scm: Fix NULL dereference in IRQ handler before __scm is published","x_generator":{"engine":"bippy-1.2.0"}}}}