Bluetooth: hci_ll: Fix firmware leak on error path
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.1%
exploitation probability
0.1%top 98% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_ll: Fix firmware leak on error path
Smatch reports:
drivers/bluetooth/hci_ll.c:587 download_firmware() warn:
'fw' from request_firmware() not released on lines: 544.
In download_firmware(), if request_firmware() succeeds but the returned
firmware content is invalid (no data or zero size), the function returns
without releasing the firmware, resulting in a resource leak.
Fix this by calling release_firmware() before returning when
request_firmware() succeeded but the firmware content is invalid.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/28904375d54b436a757641fb0331537778c0de5ahttps://git.kernel.org/stable/c/31148a7be723aa9f2e8fbd62424825ab8d577973https://git.kernel.org/stable/c/5213ef54528dd1ac79b846e30d8f72ce092794aahttps://git.kernel.org/stable/c/95e8601af227b2b4390eecf8db6abdb9f6a91f17https://git.kernel.org/stable/c/9ecbfd93cd6de6c78cb7fd51fe079e36c7ff074bhttps://git.kernel.org/stable/c/a7803df606a7d22e896b030f619e1d9d20ae0c6bhttps://git.kernel.org/stable/c/b2dfbf1b5ff192cefd49574b951a4af9ddd32213https://git.kernel.org/stable/c/e6d95488c8c964d1df0d3e1db44c958706311e86