Answer in brief
CVE-2026-64571 records a Unknown severity vulnerability in wifi: p54: validate RX frame length in p54_rx_eeprom_readback(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=7cb770729ba895f73253dfcd46c3fcba45d896f9 <25c3b85af3fc4f8043159b14e65790fc3bbdaf48 || >=7cb770729ba895f73253dfcd46c3fcba45d896f9 <f46f8f9c43fd02f4dd5f716d4bda296a523c04f0 || >=7cb770729ba895f73253dfcd46c3fcba45d896f9 <d38f5d868a0a4770e3bcd0925e16c46acdbc9509 || >=7cb770729ba895f73253dfcd46c3fcba45d896f9 <9096e1f7014174067239a63df18ae5f28301990d || >=7cb770729ba895f73253dfcd46c3fcba45d896f9 <ebd6d37fa94bee929e0b4c9ca19fdf9b1dcf6cea | 25c3b85af3fc4f8043159b14e65790fc3bbdaf48, f46f8f9c43fd02f4dd5f716d4bda296a523c04f0, d38f5d868a0a4770e3bcd0925e16c46acdbc9509, 9096e1f7014174067239a63df18ae5f28301990d, ebd6d37fa94bee929e0b4c9ca19fdf9b1dcf6cea |
| Linux/Linuxgeneric | 2.6.28 | Not reported |
| Linux/Linuxgeneric | >=7cb770729ba895f73253dfcd46c3fcba45d896f9 <7a456ffcd20bd92ad0ef46c1aaa0e39e3be1f7e7 || >=7cb770729ba895f73253dfcd46c3fcba45d896f9 <88f7044f92b8326fbfab26d0d8ed297c367ebb76 || >=7cb770729ba895f73253dfcd46c3fcba45d896f9 <f21b7e096fe5371bf697cd410537fb434a763f5e || >=7cb770729ba895f73253dfcd46c3fcba45d896f9 <25c3b85af3fc4f8043159b14e65790fc3bbdaf48 || >=7cb770729ba895f73253dfcd46c3fcba45d896f9 <f46f8f9c43fd02f4dd5f716d4bda296a523c04f0 || >=7cb770729ba895f73253dfcd46c3fcba45d896f9 <d38f5d868a0a4770e3bcd0925e16c46acdbc9509 || >=7cb770729ba895f73253dfcd46c3fcba45d896f9 <9096e1f7014174067239a63df18ae5f28301990d || >=7cb770729ba895f73253dfcd46c3fcba45d896f9 <ebd6d37fa94bee929e0b4c9ca19fdf9b1dcf6cea | 7a456ffcd20bd92ad0ef46c1aaa0e39e3be1f7e7, 88f7044f92b8326fbfab26d0d8ed297c367ebb76, f21b7e096fe5371bf697cd410537fb434a763f5e, 25c3b85af3fc4f8043159b14e65790fc3bbdaf48, f46f8f9c43fd02f4dd5f716d4bda296a523c04f0, d38f5d868a0a4770e3bcd0925e16c46acdbc9509, 9096e1f7014174067239a63df18ae5f28301990d, ebd6d37fa94bee929e0b4c9ca19fdf9b1dcf6cea |
Published upstream
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 3, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: wifi: p54: validate RX frame length in p54_rx_eeprom_readback() p54_rx_eeprom_readback() copies the requested EEPROM slice out of a device-supplied readback frame without checking that the skb actually holds that many bytes. Commit da1b9a55ff11 ("wifi: p54: prevent buffer-overflow in p54_rx_eeprom_readback()") closed the destination overflow by copying a fixed priv->eeprom_slice_size (and rejecting a mismatched advertised len), but the source side is still unbounded: nothing verifies the frame is long enough to supply that many bytes. A malicious USB device can send a short frame whose advertised len matches priv->eeprom_slice_size while the payload is truncated. The equality check passes and memcpy() reads past the end of the skb, leaking adjacent heap: BUG: KASAN: slab-out-of-bounds in p54_rx (drivers/net/wireless/intersil/p54/txrx.c:507) Read of size 1016 at addr ffff88800f077114 by task swapper/0/0 Call Trace: <IRQ> ... __asan_memcpy (mm/kasan/shadow.c:105) p54_rx (drivers/net/wireless/intersil/p54/txrx.c:507) p54u_rx_cb (drivers/net/wireless/intersil/p54/p54usb.c:163) __usb_hcd_giveback_urb (drivers/usb/core/hcd.c:1657) dummy_timer (drivers/usb/gadget/udc/dummy_hcd.c:2005) ... </IRQ> The buggy address belongs to the object at ffff88800f0770c0 which belongs to the cache skbuff_small_head of size 704 The buggy address is located 84 bytes inside of allocated 704-byte region [ffff88800f0770c0, ffff88800f077380) Check that the slice fits in the skb before copying.
Quoted source text, attributed separately from HOL analysis.