Re: [BlueZ, v4] avrcp: Fix Out-of-Bounds Read in AVRCP GetFolderItems parsing

Bastien Nocera <[email protected]>
Newsgroups org.kernel.vger.linux-bluetooth
Message-ID <[email protected]>
The security issue that this fixes got assigned CVE-2026-75032.

Distributors that want to fix CVE-2026-75032 should also consider
applying "avrcp: Fix media/folder name not being set", which is still
pending.

On Fri, 2026-08-14 at 17:20 +0000, [email protected]
wrote:
> Hello:
> 
> This patch was applied to bluetooth/bluez.git (master)
> by Luiz Augusto von Dentz <[email protected]>:
> 
> On Fri, 14 Aug 2026 16:01:18 +0200 you wrote:
> > If the "Displayable Name Length" is much longer than the size of
> > the PDU
> > packet we receive, then we might try to memcpy() past the end of
> > the PDU
> > packet.
> > 
> > Be careful about clamping the name copying to the smallest of:
> > - length specified in the PDU
> > - left-over packet after the length field
> > - size of the string we'll copy it into
> > 
> > [...]
> 
> Here is the summary with links:
>   - [BlueZ,v4] avrcp: Fix Out-of-Bounds Read in AVRCP GetFolderItems
> parsing
>    
> https://git.kernel.org/pub/scm/bluetooth/bluez.git/?id=bd8989620ed6
> 
> You are awesome, thank you!
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