When build kernel with CONFIG_KASAN=y there are reports of memory leaks, like: ... unreferenced object 0xffff2020510fe200 (size 64): comm "insmod", pid 4642, jiffies 4295983961 (age 46049.752s) hex dump (first 32 bytes): 10 20 40 06 28 20 ff ff 10 40 7f 06 20 20 ff ff . @.( ...@.. .. 10 20 bb 8a 20 00 ff ff 10 e0 c7 8a 20 00 ff ff . .. ....... ... backtrace: [<0000000034ec4724>] __kmem_cache_alloc_node+0x2f8/0x348 [<0000000057fbc15d>] __kmalloc_node_track_caller+0x5c/0x110 [<0000000055d5e34b>] krealloc+0x8c/0x178 [<00000000a4635beb>] coresight_alloc_device_name+0x128/0x188 [coresight] [<000000000ce9d17b>] smb_probe+0x268/0x478 [ultrasoc_smb] ... unreferenced object 0xffff00213c141000 (size 1024): comm "systemd-udevd", pid 2123, jiffies 4294909467 (age 6062.160s) hex dump (first 32 bytes): 04 00 00 00 02 00 00 00 18 10 14 3c 21 00 ff ff ...........<!... 00 00 00 00 00 00 00 00 03 00 00 00 10 00 00 00 ................ backtrace: [<000000004b7c9001>] __kmem_cache_alloc_node+0x2f8/0x348 [<00000000b0fc7ceb>] __kmalloc+0x58/0x108 [<0000000064ff4695>] acpi_os_allocate+0x2c/0x68 [<000000007d57d116>] acpi_ut_initialize_buffer+0x54/0xe0 [<0000000024583908>] acpi_evaluate_object+0x388/0x438 [<0000000017b2e72b>] acpi_evaluate_object_typed+0xe8/0x240 [<000000005df0eac2>] coresight_get_platform_data+0x1b4/0x988 [coresight] ...
The patchset based on "coresight: platform: acpi: Ignore the absence of graph" https://git.kernel.org/pub/scm/linux/kernel/git/coresight/linux.git/commit/?...
Junhao He (2): coresight: Fix memory leak in acpi_buffer->pointer coresight: core: fix memory leak in dict->fwnode_list
drivers/hwtracing/coresight/coresight-core.c | 20 +++++++++- .../hwtracing/coresight/coresight-platform.c | 40 ++++++++++++------- 2 files changed, 45 insertions(+), 15 deletions(-)