In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Fix status of pending commands flushed on power off…
CVE-2026-99091
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Fix status of pending commands flushed on power off cmdcompletersp() receives a struct cmdlookup and, for a pending command that has no cmdcomplete callback, falls through to cmdstatusrsp(cmd, data). cmdstatusrsp() reads data as a u8 , so the status sent comes from the first byte of match->sk's representation, not from match->mgmtstatus. commit f53e1c9c726d ("Bluetooth: MGMT: Fix possible crash on mgmtindexremoved") changed the callers' data from &status to &match and updated the cmdcomplete branch to match->mgmtstatus, but left the fall-through passing data unchanged. In mgmtindexremoved() match->sk is NULL, so every such command is answered with status 0x00 (Success) instead of MGMTSTATUSINVALIDINDEX. In mgmtpoweroff() it is NULL too, unless a Set Powered command was pending: then settingsrsp() has stored that command's socket in match->sk, and the byte sent comes from the socket pointer. Either way the status the caller set, MGMTSTATUSNOTPOWERED (or MGMTSTATUSINVALIDINDEX when the device is being unregistered), is lost. Pass the status the callers set. This was seen on a QCA9377 laptop:…
Assessment
- CVSS
- Not yet scored
- Severity
- Unscored
- Known exploited
- Not listed in CISA KEV
- Exploit availability
- Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
- Published
- 26 October 2026
- Last updated
- 30 October 2026
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
At the source
References
- https://git.kernel.org/stable/c/07976405a3c71253e50533ee7b7a8b0dc16ab6ba
- https://git.kernel.org/stable/c/44ce36c5789ac84e65de1e98c32db9a5ac04ed47
- https://git.kernel.org/stable/c/7ed7e038b520cf0dfa12d61c2caddb95e2f6922d
- https://git.kernel.org/stable/c/86ef0f58bdecdedb3a1240971c56d71b7e4ce3fc
- https://git.kernel.org/stable/c/bbc485ee811a74fc1d4733d0a2b0eb5aeb271a08
- https://git.kernel.org/stable/c/ec227cddd13cd7ac9077d263a73473ac370a055d
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