In the Linux kernel, the following vulnerability has been resolved:
thermal: int340x: fix memory leak in int3400_notify()
It is easy to hit the below memory leaks in my TigerLake platform:
unreferenced object 0xffff927c8b91dbc0 (size 32):
comm "kworker/0:2", pid 112, jiffies 4294893323 (age 83.604s)
hex dump (first 32 bytes):
4e 41 4d 45 3d 49 4e 54 33 34 30 30 20 54 68 65 NAME=INT3400 The
72 6d 61 6c 00 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 rmal.kkkkkkkkkk.
backtrace:
[] __kmalloc_track_caller+0x2fe/0x4a0
[] kvasprintf+0x65/0xd0
[] kasprintf+0x4e/0x70
[] int3400_notify+0x82/0x120 [int3400_thermal]
[] acpi_ev_notify_dispatch+0x54/0x71
[] acpi_os_execute_deferred+0x17/0x30
[] process_one_work+0x21a/0x3f0
[] worker_thread+0x4a/0x3b0
[] kthread+0xfd/0x130
[] ret_from_fork+0x1f/0x30
Fix it by calling kfree() accordingly.
References
In the Linux kernel, the following vulnerability has been resolved:
thermal: int340x: fix memory leak in int3400_notify()
It is easy to hit the below memory leaks in my TigerLake platform:
unreferenced object 0xffff927c8b91dbc0 (size 32):
comm "kworker/0:2", pid 112, jiffies 4294893323 (age 83.604s)
hex dump (first 32 bytes):
4e 41 4d 45 3d 49 4e 54 33 34 30 30 20 54 68 65 NAME=INT3400 The
72 6d 61 6c 00 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5 rmal.kkkkkkkkkk.
backtrace:
[] __kmalloc_track_caller+0x2fe/0x4a0
[] kvasprintf+0x65/0xd0
[] kasprintf+0x4e/0x70
[] int3400_notify+0x82/0x120 [int3400_thermal]
[] acpi_ev_notify_dispatch+0x54/0x71
[] acpi_os_execute_deferred+0x17/0x30
[] process_one_work+0x21a/0x3f0
[] worker_thread+0x4a/0x3b0
[] kthread+0xfd/0x130
[] ret_from_fork+0x1f/0x30
Fix it by calling kfree() accordingly.
References