CVE-2026-64573 | In the Linux kernel, the following vulnerability has been resolved: Bluetooth: qca: fix NVM tag length underflow in TLV parser In the TLV_TYPE_NVM branch of qca_tlv_check_data() the tag loop bound is "while (idx < length - sizeof(struct tlv_type_nvm))". "length" is a signed int from the firmware TLV header and sizeof(struct tlv_type_nvm) is a size_t (12), so "length" is converted to size_t and any firmware-supplied "length" < 12 makes the subtraction wrap t
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: qca: fix NVM tag length underflow in TLV parser
In the TLV_TYPE_NVM branch of qca_tlv_check_data() the tag loop bound is
"while (idx < length - sizeof(struct tlv_type_nvm))". "length" is a signed
int from the firmware TLV header and sizeof(struct tlv_type_nvm) is a
size_t (12), so "length" is converted to size_t and any firmware-supplied
"length" < 12 makes the subtraction wrap to a huge value. The loop body
then reads a 12-byte struct tlv_type_nvm past the end of the short
vmalloc'd firmware buffer (and the EDL_TAG_ID_* handlers can write past it).
Rewrite the bound as "idx + sizeof(struct tlv_type_nvm)
- 🔗 git.kernel.org/stable/c/a7ee11441d71ab036a705d110a415421…
- 🔗 git.kernel.org/stable/c/5d34e537755d2f9eba2d4e54d70126f9…
- 🔗 git.kernel.org/stable/c/70354dbb5f72d9a76da7b031de3cbaf6…
- 🔗 git.kernel.org/stable/c/59fd2f075bca94f030c7c78e94878ea0…
- 🔗 git.kernel.org/stable/c/a087ed960fce54e9302796229e9d545b…
- 🔗 git.kernel.org/stable/c/4fcfb5b2c736785464ff9745f94c6726…
- 🔗 git.kernel.org/stable/c/c90164ca0f7036942ba088eb7ea8d3f6…
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CVE-2026-64573 | In the Linux kernel, the following vulnerability has been resolved: Bluetooth: qca: fix NVM tag length underflow in TLV parser In the TLV_TYPE_NVM branch of qca_tlv_check_data() the tag loop bound is "while (idx < length - sizeof(struct tlv_type_nvm))". "length" is a signed int from the firmware TLV header and sizeof(struct tlv_type_nvm) is a size_t (12), so "length" is converted to size_t and any firmware-supplied "length" < 12 makes the subtraction wrap t
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: qca: fix NVM tag length underflow in TLV parser In the TLV_TYPE_NVM branch of qca_tlv_check_data() the tag loop bound is "while (idx < length - sizeof(struct t