kernel: Bluetooth: Fix use-after-free bugs caused by sco_sock_timeout

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix use-after-free bugs caused by scosocktimeout When the sco connection is established and then, the sco socket is releasing, timeoutwork will be scheduled to judge whether the sco disconnection is timeout. The sock...

kernel: Bluetooth: iso: Fix circular lock in iso_listen_bis

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: iso: Fix circular lock in isolistenbis This fixes the circular locking dependency warning below, by releasing the socket lock before enterning isolistenbis, to avoid any potential deadlock with hdev lock. 75.307983...

kernel: Bluetooth: Call iso_exit() on module unload

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Call isoexit on module unload If isoinit has been called, isoexit must be called on module unload. Without that, the struct proto that isoinit registered with protoregister becomes invalid, which could cause...

kernel: Bluetooth: L2CAP: Fix slab-use-after-free in l2cap_connect()

A use-after-free vulnerability exists in the Bluetooth stack of the Linux kernel. The l2capconnect does not return void during the function return, potentially leading to a loss of system availability...

kernel: Bluetooth: RFCOMM: Fix not validating setsockopt user input

This is a vulnerability in the Linux kernel's Bluetooth RFCOMM protocol. It occurs because the rfcommsocksetsockoptold function fails to properly validate the length of user-supplied data, leading to out-of-bounds memory reads. This flaw could result in system instability or crashes...

kernel: Bluetooth: hci_sock: Fix not validating setsockopt user input

A denial of service vulnerability was found in the Linux kernel. No input validation is performed in the Bluetooth hcisock function. This vulnerability could lead to a crash, resulting in the loss of system availability...

kernel: Bluetooth: hci_conn: Use disable_delayed_work_sync

A flaw was found in the Bluetooth subsystem of the Linux kernel, in the handling of delayed work within the hciconn Host Controller Interface connection structure. The kernel used canceldelayedworksync when shutting down a connection, which cancels ongoing work but allows rescheduling. This could...

kernel: Bluetooth: MGMT: Fix slab-use-after-free Read in set_powered_sync

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Fix slab-use-after-free Read in setpoweredsync This fixes the following crash: ================================================================== BUG: KASAN: slab-use-after-free in setpoweredsync+0x3a/0xc0...

kernel: Bluetooth: hci_event: Fix using rcu_read_(un)lock while iterating

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcievent: Fix using rcureadunlock while iterating The usage of rcureadunlock while inside listforeachentryrcu is not safe since for the most part entries fetched this way shall be treated as rcudereference: Note that t...

kernel: Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2capsockcreate btsockalloc allocates the sk object and attaches it to the provided sock object. On error l2capsockalloc frees the sk object, but the dangling pointer...

kernel: Bluetooth: HCI: Fix potential null-ptr-deref

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: HCI: Fix potential null-ptr-deref Fix potential null-ptr-deref in hcilebigsyncestablishedevt...

kernel: Bluetooth: fix use-after-free in device_for_each_child()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix use-after-free in deviceforeachchild Syzbot has reported the following KASAN splat: BUG: KASAN: slab-use-after-free in deviceforeachchild+0x18f/0x1a0 Read of size 8 at addr ffff88801f605308 by task kbnepd bnep0/498...

kernel: bluetooth/l2cap: sync sock recv cb and release

In the Linux kernel, the following vulnerability has been resolved: bluetooth/l2cap: sync sock recv cb and release The problem occurs between the system call to close the sock and hcirxwork, where the former releases the sock and the latter accesses it without lock protection. CPU0 CPU1 ---- ----...

kernel: Bluetooth: btusb: mediatek: add intf release flow when usb disconnect

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btusb: mediatek: add intf release flow when usb disconnect MediaTek claim an special usb intr interface for ISO data transmission. The interface need to be released before unregistering hci device when usb disconnect...

Moderate: Red Hat Security Advisory: kernel security update

An update for kernel is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

kernel: Bluetooth: ISO: Fix not validating setsockopt user input

CVE-2024-35964 is a vulnerability in the Linux kernel’s Bluetooth ISO implementation. It occurs because the setsockopt function does not properly validate the size of user-provided data before copying it into kernel memory. This flaw can lead to buffer overflows, potentially resulting in crashes ...

kernel: Bluetooth: Fix memory leak in hci_req_sync_complete()

This CVE identifies a memory leak in the Linux kernel's Bluetooth subsystem, specifically within the hcireqsynccomplete function. The issue arises because the function fails to release the previous synchronization request state before assigning a new one, leading to increased memory usage over...

kernel: Bluetooth: msft: fix slab-use-after-free in msft_do_close()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: msft: fix slab-use-after-free in msftdoclose Tying the msft-data lifetime to hdev by freeing it in hcireleasedev to fix the following case: use msftdoclose msft = hdev-msftdata; if !msft ...1 filterlock; ...4 msftdata;...

kernel: Bluetooth: L2CAP: Fix div-by-zero in l2cap_le_flowctl_init()

in linux kernel bluetooth L2CAP, l2capleflowctlinit can cause both div-by-zero and an integer overflow since hdev-lemtu may not fall in the valid range...

kernel: Bluetooth: hci_conn: Fix UAF in hci_enhanced_setup_sync

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciconn: Fix UAF in hcienhancedsetupsync This checks if the ACL connection remains valid as it could be destroyed while hcienhancedsetupsync is pending on cmdsync leading to the following trace: BUG: KASAN:...