{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-50558", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-10-22T13:20:23.759Z", "datePublished": "2025-10-22T13:23:18.717Z", "dateUpdated": "2025-10-22T13:23:18.717Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-10-22T13:23:18.717Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nregmap-irq: Use the new num_config_regs property in regmap_add_irq_chip_fwnode\n\nCommit faa87ce9196d (\"regmap-irq: Introduce config registers for irq\ntypes\") added the num_config_regs, then commit 9edd4f5aee84 (\"regmap-irq:\nDeprecate type registers and virtual registers\") suggested to replace\nnum_type_reg with it. However, regmap_add_irq_chip_fwnode wasn't modified\nto use the new property. Later on, commit 255a03bb1bb3 (\"ASoC: wcd9335:\nConvert irq chip to config regs\") removed the old num_type_reg property\nfrom the WCD9335 driver's struct regmap_irq_chip, causing a null pointer\ndereference in regmap_irq_set_type when it tried to index d->type_buf as\nit was never allocated in regmap_add_irq_chip_fwnode:\n\n[ 39.199374] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n\n[ 39.200006] Call trace:\n[ 39.200014] regmap_irq_set_type+0x84/0x1c0\n[ 39.200026] __irq_set_trigger+0x60/0x1c0\n[ 39.200040] __setup_irq+0x2f4/0x78c\n[ 39.200051] request_threaded_irq+0xe8/0x1a0\n\nUse num_config_regs in regmap_add_irq_chip_fwnode instead of num_type_reg,\nand fall back to it if num_config_regs isn't defined to maintain backward\ncompatibility."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/base/regmap/regmap-irq.c"], "versions": [{"version": "faa87ce9196dbb074d75bd4aecb8bacf18f19b4e", "lessThan": "57bb34330c0fc70bb4ab96399a3c1b80e73e9d49", "status": "affected", "versionType": "git"}, {"version": "faa87ce9196dbb074d75bd4aecb8bacf18f19b4e", "lessThan": "961db32e52f4d34a9a95939a30393fd190397f84", "status": "affected", "versionType": "git"}, {"version": "faa87ce9196dbb074d75bd4aecb8bacf18f19b4e", "lessThan": "84498d1fb35de6ab71bdfdb6270a464fb4a0951b", "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/base/regmap/regmap-irq.c"], "versions": [{"version": "6.0", "status": "affected"}, {"version": "0", "lessThan": "6.0", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.16", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.2", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.2", "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": "6.0", "versionEndExcluding": "6.0.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.1.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/57bb34330c0fc70bb4ab96399a3c1b80e73e9d49"}, {"url": "https://git.kernel.org/stable/c/961db32e52f4d34a9a95939a30393fd190397f84"}, {"url": "https://git.kernel.org/stable/c/84498d1fb35de6ab71bdfdb6270a464fb4a0951b"}], "title": "regmap-irq: Use the new num_config_regs property in regmap_add_irq_chip_fwnode", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nregmap-irq: Use the new num_config_regs property in regmap_add_irq_chip_fwnode\n\nCommit faa87ce9196d (\"regmap-irq: Introduce config registers for irq\ntypes\") added the num_config_regs, then commit 9edd4f5aee84 (\"regmap-irq:\nDeprecate type registers and virtual registers\") suggested to replace\nnum_type_reg with it. However, regmap_add_irq_chip_fwnode wasn't modified\nto use the new property. Later on, commit 255a03bb1bb3 (\"ASoC: wcd9335:\nConvert irq chip to config regs\") removed the old num_type_reg property\nfrom the WCD9335 driver's struct regmap_irq_chip, causing a null pointer\ndereference in regmap_irq_set_type when it tried to index d->type_buf as\nit was never allocated in regmap_add_irq_chip_fwnode:\n\n[ 39.199374] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n\n[ 39.200006] Call trace:\n[ 39.200014] regmap_irq_set_type+0x84/0x1c0\n[ 39.200026] __irq_set_trigger+0x60/0x1c0\n[ 39.200040] __setup_irq+0x2f4/0x78c\n[ 39.200051] request_threaded_irq+0xe8/0x1a0\n\nUse num_config_regs in regmap_add_irq_chip_fwnode instead of num_type_reg,\nand fall back to it if num_config_regs isn't defined to maintain backward\ncompatibility."}], "id": "CVE-2022-50558", "lastModified": "2025-10-22T21:12:48.953", "metrics": {}, "published": "2025-10-22T14:15:40.513", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/57bb34330c0fc70bb4ab96399a3c1b80e73e9d49"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/84498d1fb35de6ab71bdfdb6270a464fb4a0951b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/961db32e52f4d34a9a95939a30393fd190397f84"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: regmap-irq: Use the new num_config_regs property in regmap_add_irq_chip_fwnode", "id": "2405782", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2405782"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2022-50558", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-10-22T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-50558\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50558\nhttps://lore.kernel.org/linux-cve-announce/2025102206-CVE-2022-50558-444f@gregkh/T"], "threat_severity": "Moderate"}