{ "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": "2026-08-19T16:28:46.775Z" }, "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 \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 \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": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/net/wireless/intersil/p54/txrx.c" ], "versions": [ { "version": "7cb770729ba895f73253dfcd46c3fcba45d896f9", "lessThan": "7a456ffcd20bd92ad0ef46c1aaa0e39e3be1f7e7", "status": "affected", "versionType": "git" }, { "version": "7cb770729ba895f73253dfcd46c3fcba45d896f9", "lessThan": "88f7044f92b8326fbfab26d0d8ed297c367ebb76", "status": "affected", "versionType": "git" }, { "version": "7cb770729ba895f73253dfcd46c3fcba45d896f9", "lessThan": "f21b7e096fe5371bf697cd410537fb434a763f5e", "status": "affected", "versionType": "git" }, { "version": "7cb770729ba895f73253dfcd46c3fcba45d896f9", "lessThan": "25c3b85af3fc4f8043159b14e65790fc3bbdaf48", "status": "affected", "versionType": "git" }, { "version": "7cb770729ba895f73253dfcd46c3fcba45d896f9", "lessThan": "f46f8f9c43fd02f4dd5f716d4bda296a523c04f0", "status": "affected", "versionType": "git" }, { "version": "7cb770729ba895f73253dfcd46c3fcba45d896f9", "lessThan": "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", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.2", "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": "2.6.28", "versionEndExcluding": "5.10.265" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.28", "versionEndExcluding": "5.15.216" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.28", "versionEndExcluding": "6.1.183" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.28", "versionEndExcluding": "6.6.148" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.28", "versionEndExcluding": "6.12.101" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.28", "versionEndExcluding": "6.18.42" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.28", "versionEndExcluding": "7.1.6" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.28", "versionEndExcluding": "7.2" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/7a456ffcd20bd92ad0ef46c1aaa0e39e3be1f7e7" }, { "url": "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" } } } }