Bluetooth: bpa10x: avoid OOB read of revision string in bpa10x_setup()
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: bpa10x: avoid OOB read of revision string in bpa10x_setup() bpa10x_setup() sends the vendor command 0xfc0e and passes the response to bt_dev_info() and hci_set_fw_info() as a "%s" string starting at skb->data + 1, without checking the length: bt_dev_info(hdev, "%s", (char *)(skb->data + 1)); hci_set_fw_info(hdev, "%s", skb->data + 1); A device that returns a one-byte response (status only) leaves skb->data + 1 past the end of the data, and the %s walk reads adjacent slab memory until it meets a NUL. The same happens when the payload is not NUL-terminated within skb->len. The out-of-bounds bytes end up in the kernel log and the firmware-info debugfs file. Print the revision string with a bounded "%.*s" limited to skb->len - 1 instead. This keeps the string readable for well-behaved devices while never reading past the received data, and does not fail setup, so a device returning a short or unterminated response keeps working.
CVE-2026-64549
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:CVE-2026-64549
Kernel
Source reference: /affected/1/package/name
- Affected versions
- Not stated in this record
- Fixed versions
- 5.10.261
Source reference:
/affected/1/ranges5.15.212Source reference:
/affected/1/ranges6.1.178Source reference:
/affected/1/ranges6.6.145Source reference:
/affected/1/ranges6.12.97Source reference:
/affected/1/ranges6.18.40Source reference:
/affected/1/ranges7.1.5Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "ddd68ec8f4847b460c9f580076eafe13b031a6fd"
},
{
"fixed": "1813add71e386f77b3040e6c8dc9b7b3ff965a6c"
},
{
"fixed": "bd56c23f1f8681a2857ee924a8bd3abf87c8913b"
},
{
"fixed": "7a64f39ebe1bacd9004a62eceadac0b122ec3cc2"
},
{
"fixed": "f80b4afe893dffa9fabdbf80fb4d6782b24a6793"
},
{
"fixed": "4b4008dda1d0c6e598d7865631ad4eda63a560f0"
},
{
"fixed": "bfc9e7be289df11e8e38c98cd78019d67fdd0bd5"
},
{
"fixed": "a8e169d308775039200bb9c905c7ce420db6e8c5"
},
{
"fixed": "dd068ef044128db655f48323a4acfd5907e04903"
}
]
}
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64549.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "4.4.0"
},
{
"fixed": "5.10.261"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.11.0"
},
{
"fixed": "5.15.212"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.16.0"
},
{
"fixed": "6.1.178"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.2.0"
},
{
"fixed": "6.6.145"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.7.0"
},
{
"fixed": "6.12.97"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.13.0"
},
{
"fixed": "6.18.40"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.19.0"
},
{
"fixed": "7.1.5"
}
]
}
],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64549.json"
}
}
]- Related CVEs
- CVE-2026-64549
Source reference:
/id
Publisher severity
No explicit severity was provided.
- Event
- #50707 · Revision 1
- Added to Heist Feed
- Publisher date