{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2025-39891", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T07:20:57.145Z", "datePublished": "2025-10-01T07:42:40.633Z", "dateUpdated": "2025-10-01T07:42:40.633Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-10-01T07:42:40.633Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mwifiex: Initialize the chan_stats array to zero\n\nThe adapter->chan_stats[] array is initialized in\nmwifiex_init_channel_scan_gap() with vmalloc(), which doesn't zero out\nmemory. The array is filled in mwifiex_update_chan_statistics()\nand then the user can query the data in mwifiex_cfg80211_dump_survey().\n\nThere are two potential issues here. What if the user calls\nmwifiex_cfg80211_dump_survey() before the data has been filled in.\nAlso the mwifiex_update_chan_statistics() function doesn't necessarily\ninitialize the whole array. Since the array was not initialized at\nthe start that could result in an information leak.\n\nAlso this array is pretty small. It's a maximum of 900 bytes so it's\nmore appropriate to use kcalloc() instead vmalloc()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/marvell/mwifiex/cfg80211.c", "drivers/net/wireless/marvell/mwifiex/main.c"], "versions": [{"version": "bf35443314acb43fa8a3f9f8046e14cbe178762b", "lessThan": "9eb0118b3470b4d2e4e3bbb1fc088b30c0285d65", "status": "affected", "versionType": "git"}, {"version": "bf35443314acb43fa8a3f9f8046e14cbe178762b", "lessThan": "05daef0442d28350a1a0d6d0e2cab4a7a91df475", "status": "affected", "versionType": "git"}, {"version": "bf35443314acb43fa8a3f9f8046e14cbe178762b", "lessThan": "acdf26a912190fc6746e2a890d7d0338190527b4", "status": "affected", "versionType": "git"}, {"version": "bf35443314acb43fa8a3f9f8046e14cbe178762b", "lessThan": "32c124c9c03aa755cbaf60ef7f76afd918d47659", "status": "affected", "versionType": "git"}, {"version": "bf35443314acb43fa8a3f9f8046e14cbe178762b", "lessThan": "9df29aa5637d94d24f7c5f054ef4feaa7b766111", "status": "affected", "versionType": "git"}, {"version": "bf35443314acb43fa8a3f9f8046e14cbe178762b", "lessThan": "06616410a3e5e6cd1de5b7cbc668f1a7edeedad9", "status": "affected", "versionType": "git"}, {"version": "bf35443314acb43fa8a3f9f8046e14cbe178762b", "lessThan": "5285b7009dc1e09d5bb9e05fae82e1a807882dbc", "status": "affected", "versionType": "git"}, {"version": "bf35443314acb43fa8a3f9f8046e14cbe178762b", "lessThan": "0e20450829ca3c1dbc2db536391537c57a40fe0b", "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/net/wireless/marvell/mwifiex/cfg80211.c", "drivers/net/wireless/marvell/mwifiex/main.c"], "versions": [{"version": "3.19", "status": "affected"}, {"version": "0", "lessThan": "3.19", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.299", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.243", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.192", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.151", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.105", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.46", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.16.6", "lessThanOrEqual": "6.16.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.17", "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": "3.19", "versionEndExcluding": "5.4.299"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.19", "versionEndExcluding": "5.10.243"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.19", "versionEndExcluding": "5.15.192"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.19", "versionEndExcluding": "6.1.151"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.19", "versionEndExcluding": "6.6.105"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.19", "versionEndExcluding": "6.12.46"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.19", "versionEndExcluding": "6.16.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.19", "versionEndExcluding": "6.17"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/9eb0118b3470b4d2e4e3bbb1fc088b30c0285d65"}, {"url": "https://git.kernel.org/stable/c/05daef0442d28350a1a0d6d0e2cab4a7a91df475"}, {"url": "https://git.kernel.org/stable/c/acdf26a912190fc6746e2a890d7d0338190527b4"}, {"url": "https://git.kernel.org/stable/c/32c124c9c03aa755cbaf60ef7f76afd918d47659"}, {"url": "https://git.kernel.org/stable/c/9df29aa5637d94d24f7c5f054ef4feaa7b766111"}, {"url": "https://git.kernel.org/stable/c/06616410a3e5e6cd1de5b7cbc668f1a7edeedad9"}, {"url": "https://git.kernel.org/stable/c/5285b7009dc1e09d5bb9e05fae82e1a807882dbc"}, {"url": "https://git.kernel.org/stable/c/0e20450829ca3c1dbc2db536391537c57a40fe0b"}], "title": "wifi: mwifiex: Initialize the chan_stats array to zero", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mwifiex: Initialize the chan_stats array to zero\n\nThe adapter->chan_stats[] array is initialized in\nmwifiex_init_channel_scan_gap() with vmalloc(), which doesn't zero out\nmemory. The array is filled in mwifiex_update_chan_statistics()\nand then the user can query the data in mwifiex_cfg80211_dump_survey().\n\nThere are two potential issues here. What if the user calls\nmwifiex_cfg80211_dump_survey() before the data has been filled in.\nAlso the mwifiex_update_chan_statistics() function doesn't necessarily\ninitialize the whole array. Since the array was not initialized at\nthe start that could result in an information leak.\n\nAlso this array is pretty small. It's a maximum of 900 bytes so it's\nmore appropriate to use kcalloc() instead vmalloc()."}], "id": "CVE-2025-39891", "lastModified": "2025-10-01T08:15:31.570", "metrics": {}, "published": "2025-10-01T08:15:31.570", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/05daef0442d28350a1a0d6d0e2cab4a7a91df475"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/06616410a3e5e6cd1de5b7cbc668f1a7edeedad9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0e20450829ca3c1dbc2db536391537c57a40fe0b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/32c124c9c03aa755cbaf60ef7f76afd918d47659"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5285b7009dc1e09d5bb9e05fae82e1a807882dbc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9df29aa5637d94d24f7c5f054ef4feaa7b766111"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9eb0118b3470b4d2e4e3bbb1fc088b30c0285d65"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/acdf26a912190fc6746e2a890d7d0338190527b4"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: wifi: mwifiex: Initialize the chan_stats array to zero", "id": "2400605", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2400605"}, "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": ["In the Linux kernel, the following vulnerability has been resolved:\nwifi: mwifiex: Initialize the chan_stats array to zero\nThe adapter->chan_stats[] array is initialized in\nmwifiex_init_channel_scan_gap() with vmalloc(), which doesn't zero out\nmemory. The array is filled in mwifiex_update_chan_statistics()\nand then the user can query the data in mwifiex_cfg80211_dump_survey().\nThere are two potential issues here. What if the user calls\nmwifiex_cfg80211_dump_survey() before the data has been filled in.\nAlso the mwifiex_update_chan_statistics() function doesn't necessarily\ninitialize the whole array. Since the array was not initialized at\nthe start that could result in an information leak.\nAlso this array is pretty small. It's a maximum of 900 bytes so it's\nmore appropriate to use kcalloc() instead vmalloc()."], "name": "CVE-2025-39891", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not 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"}, {"cpe": "cpe:/o:redhat:rhivos:1", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat In-Vehicle Operating System 1"}], "public_date": "2025-10-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-39891\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-39891\nhttps://lore.kernel.org/linux-cve-announce/2025100114-CVE-2025-39891-61f7@gregkh/T"], "threat_severity": "Important"}

{"created": "2025-10-02T08:46:02.611648+00:00", "updated": "2025-10-02T08:46:02.611726+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}