{"id":"CVE-2026-99089","title":"ASoC: samsung: i2s: enable op_clk in probe to balance runtime PM","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: samsung: i2s: enable op_clk in probe to balance runtime PM\n\nThe probe function puts the device into the runtime PM active state with\nonly the \"iis\" bus clock enab…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 48279c53fd1d09dc0d1b6ebb9f21732c507cea0b < 2c64c30d493d82d5edc95811cede0083e1195822","Linux >= 48279c53fd1d09dc0d1b6ebb9f21732c507cea0b < 5dac6bf09b5a4fff2433629801309c3884c3e94a","Linux >= 48279c53fd1d09dc0d1b6ebb9f21732c507cea0b < 64bb35079dcbc67901da1fe8c52c234cbcd17df3","Linux >= 48279c53fd1d09dc0d1b6ebb9f21732c507cea0b < a728c12f8bd89947894e227d0f4f83a895ac9ab7","Linux >= 48279c53fd1d09dc0d1b6ebb9f21732c507cea0b < 7529254014764ae0b8c33d5c61a58f36c65b1a1c","Linux 4.17"],"published":"2026-10-26","updated":"2026-10-26","sourceUpdated":"2026-10-26T14:51:59.055Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-99089","references":[{"url":"https://git.kernel.org/stable/c/2c64c30d493d82d5edc95811cede0083e1195822"},{"url":"https://git.kernel.org/stable/c/5dac6bf09b5a4fff2433629801309c3884c3e94a"},{"url":"https://git.kernel.org/stable/c/64bb35079dcbc67901da1fe8c52c234cbcd17df3"},{"url":"https://git.kernel.org/stable/c/a728c12f8bd89947894e227d0f4f83a895ac9ab7"},{"url":"https://git.kernel.org/stable/c/7529254014764ae0b8c33d5c61a58f36c65b1a1c"}],"tags":["cve.org"],"ingestedAt":"2026-10-26T15:29:30.509Z","slug":"CVE-2026-99089","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nASoC: samsung: i2s: enable op_clk in probe to balance runtime PM\n\nThe probe function puts the device into the runtime PM active state with\nonly the \"iis\" bus clock enabled, but it also sets priv->op_clk to the\nparent of the RCLK_SRC mux without enabling it. The runtime PM suspend\ncallback disables both clocks, so the first runtime suspend after probe\ndisables op_clk once more than it was enabled.\n\nOn Exynos5250 Arndale both clocks resolve to the same EXYNOS_I2S_BUS gate,\nso this triggers the following warning during boot:\n\n WARNING: drivers/clk/clk.c:1270 at clk_core_disable+0xe4/0x23c, CPU#0: kworker/u8:3/45\n i2s_bus already disabled\n ...\n Workqueue: pm pm_runtime_work\n Call trace:\n  ...\n  clk_core_disable from clk_disable+0x28/0x34\n  clk_disable from i2s_runtime_suspend+0x58/0x68 [snd_soc_i2s]\n  i2s_runtime_suspend [snd_soc_i2s] from genpd_runtime_suspend+0xc4/0x298\n  genpd_runtime_suspend from __rpm_callback+0x48/0x18c\n  __rpm_callback from rpm_callback+0x4c/0x50\n  rpm_callback from rpm_suspend+0xf4/0x718\n  rpm_suspend from pm_runtime_work+0x9c/0xa0\n  ...\n\nFix this by enabling op_clk in probe right after getting it, so the clock\nstate matches the runtime PM active state, and by disabling it in remove.\n\n## Affected\n\n- `Linux >= 48279c53fd1d09dc0d1b6ebb9f21732c507cea0b < 2c64c30d493d82d5edc95811cede0083e1195822`\n- `Linux >= 48279c53fd1d09dc0d1b6ebb9f21732c507cea0b < 5dac6bf09b5a4fff2433629801309c3884c3e94a`\n- `Linux >= 48279c53fd1d09dc0d1b6ebb9f21732c507cea0b < 64bb35079dcbc67901da1fe8c52c234cbcd17df3`\n- `Linux >= 48279c53fd1d09dc0d1b6ebb9f21732c507cea0b < a728c12f8bd89947894e227d0f4f83a895ac9ab7`\n- `Linux >= 48279c53fd1d09dc0d1b6ebb9f21732c507cea0b < 7529254014764ae0b8c33d5c61a58f36c65b1a1c`\n- `Linux 4.17`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}