CVE-2024-49951: Bluetooth: MGMT: Fix possible crash on mgmt_index_removed
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: MGMT: Fix possible crash on mgmtindexremoved
If mgmtindexremoved is called while there are commands queued on cmdsync it could lead to crashes like the bellow trace:
0x0000053D: listdelentryvalidorreport+0x98/0xdc 0x0000053D: mgmtpendingremove+0x18/0x58 [bluetooth] 0x0000053E: mgmtremoveadvmonitorcomplete+0x80/0x108 [bluetooth] 0x0000053E: hcicmdsyncwork+0xbc/0x164 [bluetooth]
So while handling mgmtindexremoved this attempts to dequeue commands passed as userdata to cmdsync.
Other sources
This CVE was automatically created from a reference found in an email or other text. If you are reading this, then this CVE entry is probably erroneous, since this text should be replaced by the official CVE description automatically.
— Launchpad
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.223-1Fixed in 5.10.234-1Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.25-1Fixed in 6.12.27-1 - Upgrade
Upgrade
debian/linux-6.1to a version that resolves this vulnerability.Fixed in 6.1.129-1~deb11u1
Event History
Frequently Asked Questions
What is the severity of CVE-2024-49951?
CVE-2024-49951 has not been assigned a specific severity rating, but it poses a risk of crashes in the Linux kernel.
How do I fix CVE-2024-49951?
To fix CVE-2024-49951, update your Linux kernel to a version that includes the patch addressing this vulnerability.
Which versions of the Linux kernel are affected by CVE-2024-49951?
CVE-2024-49951 affects Linux kernel versions between 6.0 and 6.6.55, 6.7 to 6.10.14, 6.11 to 6.11.3, and the exact version 6.12-rc1.
What are the symptoms of CVE-2024-49951?
Symptoms of CVE-2024-49951 may include unexpected crashes in systems using affected Linux kernel versions.
Is CVE-2024-49951 exploitable?
CVE-2024-49951 can potentially be exploited if the mgmt_index_removed function is called while commands are queued, leading to instability.