{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2025-40317", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-40317", "idYear": 2025, "status": "PUBLISHED", "publishedAt": "2025-12-08T00:46:44.287Z", "updatedAt": "2026-08-05T12:09:27.968Z", "importedAt": "2026-10-24T01:57:34.152Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "regmap: slimbus: fix bus_context pointer in regmap init calls", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nregmap: slimbus: fix bus_context pointer in regmap init calls\n\nCommit 4e65bda8273c (\"ASoC: wcd934x: fix error handling in\nwcd934x_codec_parse_data()\") revealed the problem in the slimbus regmap.\nThat commit breaks audio playback, for instance, on sdm845 Thundercomm\nDragonboard 845c board:\n\n Unable to handle kernel paging request at virtual address ffff8000847cbad4\n ...\n CPU: 5 UID: 0 PID: 776 Comm: aplay Not tainted 6.18.0-rc1-00028-g7ea30958b305 #11 PREEMPT\n Hardware name: Thundercomm Dragonboard 845c (DT)\n ...\n Call trace:\n slim_xfer_msg+0x24/0x1ac [slimbus] (P)\n slim_read+0x48/0x74 [slimbus]\n regmap_slimbus_read+0x18/0x24 [regmap_slimbus]\n _regmap_raw_read+0xe8/0x174\n _regmap_bus_read+0x44/0x80\n _regmap_read+0x60/0xd8\n _regmap_update_bits+0xf4/0x140\n _regmap_select_page+0xa8/0x124\n _regmap_raw_write_impl+0x3b8/0x65c\n _regmap_bus_raw_write+0x60/0x80\n _regmap_write+0x58/0xc0\n regmap_write+0x4c/0x80\n wcd934x_hw_params+0x494/0x8b8 [snd_soc_wcd934x]\n snd_soc_dai_hw_params+0x3c/0x7c [snd_soc_core]\n __soc_pcm_hw_params+0x22c/0x634 [snd_soc_core]\n dpcm_be_dai_hw_params+0x1d4/0x38c [snd_soc_core]\n dpcm_fe_dai_hw_params+0x9c/0x17c [snd_soc_core]\n snd_pcm_hw_params+0x124/0x464 [snd_pcm]\n snd_pcm_common_ioctl+0x110c/0x1820 [snd_pcm]\n snd_pcm_ioctl+0x34/0x4c [snd_pcm]\n __arm64_sys_ioctl+0xac/0x104\n invoke_syscall+0x48/0x104\n el0_svc_common.constprop.0+0x40/0xe0\n do_el0_svc+0x1c/0x28\n el0_svc+0x34/0xec\n el0t_64_sync_handler+0xa0/0xf0\n el0t_64_sync+0x198/0x19c\n\nThe __devm_regmap_init_slimbus() started to be used instead of\n__regmap_init_slimbus() after the commit mentioned above and turns out\nthe incorrect bus_context pointer (3rd argument) was used in\n__devm_regmap_init_slimbus(). It should be just \"slimbus\" (which is equal\nto &slimbus->dev). Correct it. The wcd934x codec seems to be the only or\nthe first user of devm_regmap_init_slimbus() but we should fix it till\nthe point where __devm_regmap_init_slimbus() was introduced therefore\ntwo \"Fixes\" tags.\n\nWhile at this, also correct the same argument in __regmap_init_slimbus().", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "7d6f7fb053ad543da74119df3c4cd7bb46220471", "status": "affected", "versionType": "git", "lessThan": "c0f05129e5734ff3fd14b2c242709314d9ca5433" }, { "version": "7d6f7fb053ad543da74119df3c4cd7bb46220471", "status": "affected", "versionType": "git", "lessThan": "02d3041caaa3fe4dd69e5a8afd1ac6b918ddc6a1" }, { "version": "7d6f7fb053ad543da74119df3c4cd7bb46220471", "status": "affected", "versionType": "git", "lessThan": "d979639f099c6e51f06ce4dd8d8e56364d6c17ba" }, { "version": "7d6f7fb053ad543da74119df3c4cd7bb46220471", "status": "affected", "versionType": "git", "lessThan": "8143e4075d131c528540417a51966f6697be14eb" }, { "version": "7d6f7fb053ad543da74119df3c4cd7bb46220471", "status": "affected", "versionType": "git", "lessThan": "2664bfd8969d1c43dcbe3ea313f130dfa6b74f4c" }, { "version": "7d6f7fb053ad543da74119df3c4cd7bb46220471", "status": "affected", "versionType": "git", "lessThan": "a16e92f8d7dc7371e68f17a9926cb92d2244be7b" }, { "version": "7d6f7fb053ad543da74119df3c4cd7bb46220471", "status": "affected", "versionType": "git", "lessThan": "b65f3303349eaee333e47d2a99045aa12fa0c3a7" }, { "version": "7d6f7fb053ad543da74119df3c4cd7bb46220471", "status": "affected", "versionType": "git", "lessThan": "434f7349a1f00618a620b316f091bd13a12bc8d2" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "4.16", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "4.16" }, { "version": "5.4.302", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.247", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.197", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.159", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.117", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.58", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.17.8", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.17.*" }, { "version": "6.18", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }