CVE-2023-53099

/// Technical description

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

firmware: xilinx: don't make a sleepable memory allocation from an atomic context

The following issue was discovered using lockdep:

[ 6.691371] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:209

[ 6.694602] in_atomic(): 1, irqs_disabled(): 128, non_block: 0, pid: 1, name: swapper/0

[ 6.702431] 2 locks held by swapper/0/1:

[ 6.706300] #0: ffffff8800f6f188 (&dev->mutex){....}-{3:3}, at: __device_driver_lock+0x4c/0x90

[ 6.714900] #1: ffffffc009a2abb8 (enable_lock){....}-{2:2}, at: clk_enable_lock+0x4c/0x140

[ 6.723156] irq event stamp: 304030

[ 6.726596] hardirqs last enabled at (304029): [<ffffffc008d17ee0>] _raw_spin_unlock_irqrestore+0xc0/0xd0

[ 6.736142] hardirqs last disabled at (304030): [<ffffffc00876bc5c>] clk_enable_lock+0xfc/0x140

[ 6.744742] softirqs last enabled at (303958): [<ffffffc0080904f0>] _stext+0x4f0/0x894

[ 6.752655] softirqs last dis

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References