Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: hci: validate codec capability element length The hcireadcodeccapabilities function returns a sequence of capability elements. Each element begins with a one-byte length, followed by that many payload bytes...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: hciqca – Fixed a NULL pointer dereferencing in qcadmphdr, for devices that are not serdev devices. For devices connected via non-serdev paths, hu-serdev is NULL. However, qcadmphdr dereferences...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: refactoring the malicious adv data check The issue of out-of-bound reads was being performed at the end of the while loop for numreports. This could lead to false positives being recorded in the journal. A check was...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: btmtk: fixed the URB leak in the allocmtkintrurb error path When btmtkisopktpad fails, the previously allocated URB is not freed, causing the urb structure to leak. Add usbfreeurb before returning the error...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: Avoid use-after-free in dbg for hciremoveadvmonitor KASAN reports that there’s a use-after-free in hciremoveadvmonitor. By examining the disassembly, it can be seen that the issue arises from the access in...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: “Bluetooth: btsdio: fix use after free bug in btsdioRemove due to unfinished work” This issue has been resolved through commit 1e9ac114c4428fdb7ff4635b45d4f46017e8916f. This patch may introduce a potential null-ptr-def problem...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: ISO: Fixed issues related to locking and validity checks for isoconn. sk-skstate indicates whether isopisk-conn is valid. Operations that check or update skstate and access conn should hold locksock; otherwise, they...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: Use RCU for hciconnparams and iterate safely in hcisync. hciupdateacceptlistsync iterates over hdev-pendleconns and hdev-pendlereports, and waits for controller events within the loop body, without holding the hdev...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-6.1, Linux-5.15

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: Fixed handling of HCIEVIOCAPAREQUEST. If we receive HCIEVIOCAPAREQUEST while HCIOPREADREMOTEEXTFEATURES has not yet been responded to, assume that the remote supports SSP. Otherwise, this event should not be...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btintel – Validated the length before parsing diagnostic TLVs. The btinteldiagnostics function accesses tlv-val0 without first verifying that the diagnostic VSE is long enough to contain that field. This may lead to...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: holding the connection during the hcipastsync callback. This issue avoids handing over freed pointers to hciconnvalid, which might have been reused by kmalloc...

Astra Linux – Vulnerabilities in Linux, Linux-5.15, Linux-5.10

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: L2CAP: fixed the “bad unlock balance” issue in l2capdisconnectrsp. The conn-chanlock is not acquired before l2capgetchanbyscid. If l2capgetchanbyscid returns NULL, then the “bad unlock balance” issue will be trigger...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: holding the connection during the hciconnectpasync callback There is a theoretical use-after-free vulnerability if the connection is freed while the hcisync task is running. Holding the reference count prevent...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: fix refcounting of isoconn The functions isoconndel and isochandel involve a race condition that can lead to a double deletion of isoconn. Task hdev-workqueue Task 2 isoconndel isochandel isoconnholdunlesszero...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: lock sock in isoconnectind Accessing iso.pisock-conn requires locksock, which is not set in the "ev3" part of isoconnectind. It may also be NULL if the socket has transitioned away from the LISTEN/CONNECT states...

Astra Linux – Vulnerability in Linux

In the Bluetooth BR/EDR Core Specification v5.2 and earlier, legacy pairing and secure-connection pairing authentication mechanisms may allow an unauthenticated user to complete the authentication process without using pairing credentials through adjacent access. An unauthenticated, adjacent...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: In the ISO section, a race condition between krefgetunlesszero and kfree has been fixed. hciconn::isodata is accessed and modified without proper locking or using a Read-Copy-Update RCU mechanism. This leads to a ra...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: hciuart: added a missing NULL check in h5enqueue. Syzbot encountered a general protection fault in pmruntimeresume. The problem was due to a missing NULL check. hu-serdev can be NULL, and we should not blindly pass...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: RFCOMM: Avoid leaving a dangling sk pointer in rfcommsockalloc The btsockalloc function attaches the allocated sk object to the provided sock object. If rfcommdlcalloc fails, we release the sk object, but leave a...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: ISO: fixed improper handling of malformed ISOEND/CONT packets. The Core Specification Part C, Volume 4, Section 5.4.5 does not exclude empty ISOCONT and ISOEND packets. Currently, we reject such packets if they are...