CVE-2026-64571

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64571", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T15:36:31.797Z", "datePublished": "2026-08-05T08:08:08.466Z", "dateUpdated": "2026-11-06T16:44:57.541Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-19T16:28:46.775Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: p54: validate RX frame length in p54_rx_eeprom_readback()\n\np54_rx_eeprom_readback() copies the requested EEPROM slice out of a\ndevice-supplied readback frame without checking that the skb actually holds\nthat many bytes. Commit da1b9a55ff11 (\"wifi: p54: prevent buffer-overflow in\np54_rx_eeprom_readback()\") closed the destination overflow by copying a\nfixed priv->eeprom_slice_size (and rejecting a mismatched advertised len),\nbut the source side is still unbounded: nothing verifies the frame is long\nenough to supply that many bytes.\n\nA malicious USB device can send a short frame whose advertised len matches\npriv->eeprom_slice_size while the payload is truncated. The equality check\npasses and memcpy() reads past the end of the skb, leaking adjacent heap:\n\n BUG: KASAN: slab-out-of-bounds in p54_rx (drivers/net/wireless/intersil/p54/txrx.c:507)\n Read of size 1016 at addr ffff88800f077114 by task swapper/0/0\n Call Trace:\n <IRQ>\n ...\n __asan_memcpy (mm/kasan/shadow.c:105)\n p54_rx (drivers/net/wireless/intersil/p54/txrx.c:507)\n p54u_rx_cb (drivers/net/wireless/intersil/p54/p54usb.c:163)\n __usb_hcd_giveback_urb (drivers/usb/core/hcd.c:1657)\n dummy_timer (drivers/usb/gadget/udc/dummy_hcd.c:2005)\n ...\n </IRQ>\n\n The buggy address belongs to the object at ffff88800f0770c0\n which belongs to the cache skbuff_small_head of size 704\n The buggy address is located 84 bytes inside of\n allocated 704-byte region [ffff88800f0770c0, ffff88800f077380)\n\nCheck that the slice fits in the skb before copying."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": 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"d38f5d868a0a4770e3bcd0925e16c46acdbc9509", "status": "affected", "versionType": "git"}, {"version": "7cb770729ba895f73253dfcd46c3fcba45d896f9", "lessThan": "9096e1f7014174067239a63df18ae5f28301990d", "status": "affected", "versionType": "git"}, {"version": "7cb770729ba895f73253dfcd46c3fcba45d896f9", "lessThan": "ebd6d37fa94bee929e0b4c9ca19fdf9b1dcf6cea", "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/intersil/p54/txrx.c"], "versions": [{"version": "2.6.28", "status": "affected"}, {"version": "0", "lessThan": "2.6.28", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.265", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.216", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.183", 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"https://git.kernel.org/stable/c/88f7044f92b8326fbfab26d0d8ed297c367ebb76"}, {"url": "https://git.kernel.org/stable/c/f21b7e096fe5371bf697cd410537fb434a763f5e"}, {"url": "https://git.kernel.org/stable/c/25c3b85af3fc4f8043159b14e65790fc3bbdaf48"}, {"url": "https://git.kernel.org/stable/c/f46f8f9c43fd02f4dd5f716d4bda296a523c04f0"}, {"url": "https://git.kernel.org/stable/c/d38f5d868a0a4770e3bcd0925e16c46acdbc9509"}, {"url": "https://git.kernel.org/stable/c/9096e1f7014174067239a63df18ae5f28301990d"}, {"url": "https://git.kernel.org/stable/c/ebd6d37fa94bee929e0b4c9ca19fdf9b1dcf6cea"}], "title": "wifi: p54: validate RX frame length in p54_rx_eeprom_readback()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-64571", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-06T16:41:37.154533Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-06T16:44:57.541Z"}}]}}

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Commit da1b9a55ff11 (\"wifi: p54: prevent buffer-overflow in\np54_rx_eeprom_readback()\") closed the destination overflow by copying a\nfixed priv->eeprom_slice_size (and rejecting a mismatched advertised len),\nbut the source side is still unbounded: nothing verifies the frame is long\nenough to supply that many bytes.\n\nA malicious USB device can send a short frame whose advertised len matches\npriv->eeprom_slice_size while the payload is truncated. The equality check\npasses and memcpy() reads past the end of the skb, leaking adjacent heap:\n\n BUG: KASAN: slab-out-of-bounds in p54_rx (drivers/net/wireless/intersil/p54/txrx.c:507)\n Read of size 1016 at addr ffff88800f077114 by task swapper/0/0\n Call Trace:\n <IRQ>\n ...\n __asan_memcpy (mm/kasan/shadow.c:105)\n p54_rx (drivers/net/wireless/intersil/p54/txrx.c:507)\n p54u_rx_cb (drivers/net/wireless/intersil/p54/p54usb.c:163)\n __usb_hcd_giveback_urb (drivers/usb/core/hcd.c:1657)\n dummy_timer (drivers/usb/gadget/udc/dummy_hcd.c:2005)\n ...\n </IRQ>\n\n The buggy address belongs to the object at ffff88800f0770c0\n which belongs to the cache skbuff_small_head of size 704\n The buggy address is located 84 bytes inside of\n allocated 704-byte region [ffff88800f0770c0, ffff88800f077380)\n\nCheck that the slice fits in the skb before copying."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.265", "versionStartIncluding": "2.6.28"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.216", "versionStartIncluding": "2.6.28"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.183", "versionStartIncluding": "2.6.28"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.148", "versionStartIncluding": "2.6.28"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.101", "versionStartIncluding": "2.6.28"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.42", "versionStartIncluding": "2.6.28"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.1.6", "versionStartIncluding": "2.6.28"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.2", "versionStartIncluding": "2.6.28"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-19T16:28:46.775Z"}}}, "cveMetadata": {"cveId": "CVE-2026-64571", "state": "PUBLISHED", "dateUpdated": "2026-11-06T16:44:57.541Z", "dateReserved": "2026-07-19T15:36:31.797Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-08-05T08:08:08.466Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/wireless/intersil/p54/txrx.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "7a456ffcd20bd92ad0ef46c1aaa0e39e3be1f7e7", "status": "affected", "version": "7cb770729ba895f73253dfcd46c3fcba45d896f9", "versionType": "git"}, {"lessThan": "88f7044f92b8326fbfab26d0d8ed297c367ebb76", "status": "affected", "version": "7cb770729ba895f73253dfcd46c3fcba45d896f9", "versionType": "git"}, {"lessThan": "f21b7e096fe5371bf697cd410537fb434a763f5e", "status": "affected", "version": "7cb770729ba895f73253dfcd46c3fcba45d896f9", "versionType": "git"}, {"lessThan": "25c3b85af3fc4f8043159b14e65790fc3bbdaf48", "status": "affected", "version": "7cb770729ba895f73253dfcd46c3fcba45d896f9", "versionType": "git"}, {"lessThan": "f46f8f9c43fd02f4dd5f716d4bda296a523c04f0", "status": "affected", "version": "7cb770729ba895f73253dfcd46c3fcba45d896f9", "versionType": "git"}, {"lessThan": "d38f5d868a0a4770e3bcd0925e16c46acdbc9509", "status": "affected", "version": "7cb770729ba895f73253dfcd46c3fcba45d896f9", "versionType": "git"}, {"lessThan": "9096e1f7014174067239a63df18ae5f28301990d", "status": "affected", "version": "7cb770729ba895f73253dfcd46c3fcba45d896f9", "versionType": "git"}, {"lessThan": "ebd6d37fa94bee929e0b4c9ca19fdf9b1dcf6cea", "status": "affected", "version": "7cb770729ba895f73253dfcd46c3fcba45d896f9", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/wireless/intersil/p54/txrx.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.28"}, {"lessThan": "2.6.28", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.265", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.216", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.183", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.148", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.101", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.42", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "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\nwifi: p54: validate RX frame length in p54_rx_eeprom_readback()\n\np54_rx_eeprom_readback() copies the requested EEPROM slice out of a\ndevice-supplied readback frame without checking that the skb actually holds\nthat many bytes. Commit da1b9a55ff11 (\"wifi: p54: prevent buffer-overflow in\np54_rx_eeprom_readback()\") closed the destination overflow by copying a\nfixed priv->eeprom_slice_size (and rejecting a mismatched advertised len),\nbut the source side is still unbounded: nothing verifies the frame is long\nenough to supply that many bytes.\n\nA malicious USB device can send a short frame whose advertised len matches\npriv->eeprom_slice_size while the payload is truncated. The equality check\npasses and memcpy() reads past the end of the skb, leaking adjacent heap:\n\n BUG: KASAN: slab-out-of-bounds in p54_rx (drivers/net/wireless/intersil/p54/txrx.c:507)\n Read of size 1016 at addr ffff88800f077114 by task swapper/0/0\n Call Trace:\n <IRQ>\n ...\n __asan_memcpy (mm/kasan/shadow.c:105)\n p54_rx (drivers/net/wireless/intersil/p54/txrx.c:507)\n p54u_rx_cb (drivers/net/wireless/intersil/p54/p54usb.c:163)\n __usb_hcd_giveback_urb (drivers/usb/core/hcd.c:1657)\n dummy_timer (drivers/usb/gadget/udc/dummy_hcd.c:2005)\n ...\n </IRQ>\n\n The buggy address belongs to the object at ffff88800f0770c0\n which belongs to the cache skbuff_small_head of size 704\n The buggy address is located 84 bytes inside of\n allocated 704-byte region [ffff88800f0770c0, ffff88800f077380)\n\nCheck that the slice fits in the skb before copying."}], "id": "CVE-2026-64571", "lastModified": "2026-11-06T17:19:15.837", "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-64571", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-06T16:41:37.154533Z", "version": "2.0.3"}}]}, "published": "2026-08-05T08:16:36.797", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/25c3b85af3fc4f8043159b14e65790fc3bbdaf48"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7a456ffcd20bd92ad0ef46c1aaa0e39e3be1f7e7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/88f7044f92b8326fbfab26d0d8ed297c367ebb76"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9096e1f7014174067239a63df18ae5f28301990d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d38f5d868a0a4770e3bcd0925e16c46acdbc9509"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ebd6d37fa94bee929e0b4c9ca19fdf9b1dcf6cea"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f21b7e096fe5371bf697cd410537fb434a763f5e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f46f8f9c43fd02f4dd5f716d4bda296a523c04f0"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: wifi: p54: validate RX frame length in p54_rx_eeprom_readback()", "id": "2511411", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2511411"}, "csaw": false, "cwe": "CWE-125", "details": ["A flaw was found in the Linux kernel's `wifi: p54` component. A local attacker with a malicious USB device could exploit this by sending a specially crafted frame during an EEPROM (Electrically Erasable Programmable Read-Only Memory) readback operation. This vulnerability allows the device to read beyond the intended buffer, potentially disclosing sensitive information from adjacent memory."], "name": "CVE-2026-64571", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-05T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64571\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64571\nhttps://lore.kernel.org/linux-cve-announce/2026080559-CVE-2026-64571-f2f0@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7cb770729ba895f73253dfcd46c3fcba45d896f9,25c3b85af3fc4f8043159b14e65790fc3bbdaf48)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7cb770729ba895f73253dfcd46c3fcba45d896f9,f46f8f9c43fd02f4dd5f716d4bda296a523c04f0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7cb770729ba895f73253dfcd46c3fcba45d896f9,d38f5d868a0a4770e3bcd0925e16c46acdbc9509)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7cb770729ba895f73253dfcd46c3fcba45d896f9,9096e1f7014174067239a63df18ae5f28301990d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7cb770729ba895f73253dfcd46c3fcba45d896f9,ebd6d37fa94bee929e0b4c9ca19fdf9b1dcf6cea)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.6.28"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,2.6.28)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.148,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.101,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.42,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.6,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc4,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-05T09:30:11.604063+00:00", "updated": "2026-08-05T09:45:06.854138+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-125"]}