{"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   <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":"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"}}}}