{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-100076", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-25T10:25:14.456Z", "datePublished": "2026-09-25T13:06:48.057Z", "dateUpdated": "2026-09-25T13:06:48.057Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-25T13:06:48.057Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix xmit_frame/xmit_buf leaks on mgnt-frame error paths\n\nissue_beacon(), issue_probersp() and issue_asocrsp() obtain a management\nxmit_frame together with its xmit_buf from the driver's fixed-size\nmanagement-TX pools via alloc_mgtxmitframe(). On the normal path the frame\nis handed to dump_mgntframe(), which transfers ownership and eventually\nreturns both objects to their pools (the frame and, for beacons, the buf\nin rtl8723bs_mgnt_xmit(); other bufs via the pending-xmitbuf/TX-completion\npath).\n\nSeveral error/edge paths return early after a successful\nalloc_mgtxmitframe() but before dump_mgntframe(), so ownership is never\ntransferred and neither object is freed:\n\n - issue_beacon(): beacon larger than 512 bytes\n - issue_probersp(): cur_network->ie_length > MAX_IE_SZ\n - issue_probersp(): kzalloc() of the SSID scratch buffer fails\n - issue_asocrsp(): pkt_type is neither ASSOCRSP nor REASSOCRSP\n\nBecause alloc_mgtxmitframe() removes the frame and buf from their free\nlists (list_del_init) without placing them on any pending list, an\norphaned pair is on no list and referenced by nobody, so it is only\nreclaimed at driver teardown. Repeated hits progressively exhaust the\nmanagement-TX pools until alloc_mgtxmitframe() returns NULL and the\ninterface can no longer send beacons or probe/assoc responses.\n\nFree the frame and buffer on these paths, matching the existing correct\nerror handling in issue_assocreq()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/staging/rtl8723bs/core/rtw_mlme_ext.c"], "versions": [{"version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b", "lessThan": "6c9f6a3b9fdd31a0836b681053155b5997c0156e", "status": "affected", "versionType": "git"}, {"version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b", "lessThan": "c48e5aa01525577d6b6e782962a5bfb0e1535cb5", "status": "affected", "versionType": "git"}, {"version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b", "lessThan": "41b8209376dffbd7b0b85c8bc4697d9166ac62ef", "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/staging/rtl8723bs/core/rtw_mlme_ext.c"], "versions": [{"version": "4.12", "status": "affected"}, {"version": "0", "lessThan": "4.12", "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": "4.12", "versionEndExcluding": "6.18.52"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.12", "versionEndExcluding": "7.3-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6c9f6a3b9fdd31a0836b681053155b5997c0156e"}, {"url": "https://git.kernel.org/stable/c/c48e5aa01525577d6b6e782962a5bfb0e1535cb5"}, {"url": "https://git.kernel.org/stable/c/41b8209376dffbd7b0b85c8bc4697d9166ac62ef"}], "title": "staging: rtl8723bs: fix xmit_frame/xmit_buf leaks on mgnt-frame error paths", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/staging/rtl8723bs/core/rtw_mlme_ext.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "6c9f6a3b9fdd31a0836b681053155b5997c0156e", "status": "affected", "version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b", "versionType": "git"}, {"lessThan": "c48e5aa01525577d6b6e782962a5bfb0e1535cb5", "status": "affected", "version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b", "versionType": "git"}, {"lessThan": "41b8209376dffbd7b0b85c8bc4697d9166ac62ef", "status": "affected", "version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/staging/rtl8723bs/core/rtw_mlme_ext.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.12"}, {"lessThan": "4.12", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.52", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3-rc1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix xmit_frame/xmit_buf leaks on mgnt-frame error paths\n\nissue_beacon(), issue_probersp() and issue_asocrsp() obtain a management\nxmit_frame together with its xmit_buf from the driver's fixed-size\nmanagement-TX pools via alloc_mgtxmitframe(). On the normal path the frame\nis handed to dump_mgntframe(), which transfers ownership and eventually\nreturns both objects to their pools (the frame and, for beacons, the buf\nin rtl8723bs_mgnt_xmit(); other bufs via the pending-xmitbuf/TX-completion\npath).\n\nSeveral error/edge paths return early after a successful\nalloc_mgtxmitframe() but before dump_mgntframe(), so ownership is never\ntransferred and neither object is freed:\n\n - issue_beacon(): beacon larger than 512 bytes\n - issue_probersp(): cur_network->ie_length > MAX_IE_SZ\n - issue_probersp(): kzalloc() of the SSID scratch buffer fails\n - issue_asocrsp(): pkt_type is neither ASSOCRSP nor REASSOCRSP\n\nBecause alloc_mgtxmitframe() removes the frame and buf from their free\nlists (list_del_init) without placing them on any pending list, an\norphaned pair is on no list and referenced by nobody, so it is only\nreclaimed at driver teardown. Repeated hits progressively exhaust the\nmanagement-TX pools until alloc_mgtxmitframe() returns NULL and the\ninterface can no longer send beacons or probe/assoc responses.\n\nFree the frame and buffer on these paths, matching the existing correct\nerror handling in issue_assocreq()."}], "id": "CVE-2026-100076", "lastModified": "2026-09-25T14:17:14.440", "metrics": {}, "published": "2026-09-25T14:17:14.440", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/41b8209376dffbd7b0b85c8bc4697d9166ac62ef"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6c9f6a3b9fdd31a0836b681053155b5997c0156e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c48e5aa01525577d6b6e782962a5bfb0e1535cb5"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"created": "2026-09-25T17:30:16.997975+00:00", "updated": "2026-09-25T17:30:16.997981+00:00", "vendors": [], "weaknesses": ["CWE-772"]}