7.8

CVE-2026-53209

Bluetooth: hci_sync: reject oversized Broadcast Announcement prepend

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: hci_sync: reject oversized Broadcast Announcement prepend

Existing advertising instances can already hold the maximum extended
advertising payload. When hci_adv_bcast_annoucement() prepends the
Broadcast Announcement service data to that payload, the combined data
may no longer fit in the temporary buffer used to rebuild the
advertising data.

Reject that case before copying the existing payload and report the
failure through the device log. This keeps the existing advertising
data intact and avoids overrunning the temporary buffer.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.1.142 < 6.1.176
Linux ≫ Linux Kernel Version >= 6.6.94 < 6.6.143
Linux ≫ Linux Kernel Version >= 6.12.34 < 6.12.94
Linux ≫ Linux Kernel Version >= 6.15.3 < 6.16
Linux ≫ Linux Kernel Version >= 6.16.1 < 6.18.36
Linux ≫ Linux Kernel Version >= 6.19 < 7.0.13
Linux ≫ Linux Kernel Version6.16 Update-
Linux ≫ Linux Kernel Version6.16 Updaterc2
Linux ≫ Linux Kernel Version6.16 Updaterc3
Linux ≫ Linux Kernel Version6.16 Updaterc4
Linux ≫ Linux Kernel Version6.16 Updaterc5
Linux ≫ Linux Kernel Version6.16 Updaterc6
Linux ≫ Linux Kernel Version6.16 Updaterc7
Linux ≫ Linux Kernel Version7.1 Updaterc1
Linux ≫ Linux Kernel Version7.1 Updaterc2
Linux ≫ Linux Kernel Version7.1 Updaterc3
Linux ≫ Linux Kernel Version7.1 Updaterc4
Linux ≫ Linux Kernel Version7.1 Updaterc5
Linux ≫ Linux Kernel Version7.1 Updaterc6
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.14% 0.036
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

https://git.kernel.org/stable/c/10b0e832cc05d7aef4b92bed912cbd4a395d0862
Patch
https://git.kernel.org/stable/c/1338ee049a8910ba6c9cee963920e978e6893c7d
Patch
https://git.kernel.org/stable/c/02f50e8bb69f9b22516163a09922f5537d3b12d1
Patch
https://git.kernel.org/stable/c/dafc9f57140e66a10945127aa7433c3d715dc253
Patch
https://git.kernel.org/stable/c/cdd8bbdbee763fdf5bf343e6f7d4e79347739f62
Patch
https://git.kernel.org/stable/c/5c65b96b549ea2dcfde497436bf9e048deb87758
Patch