On a Monday in 2023, Tim Shearer wrote:
Repeatedly querying an SR-IOV PCI device's capabilities exposes a memory leak caused by a failure to free the virPCIVirtualFunction array within the parent struct's g_autoptr cleanup. Valgrind output after getting a single interface's XML description 1000 times: ==325982== 256,000 bytes in 1,000 blocks are definitely lost in loss record 2,634 of 2,635 ==325982== at 0x4C3C096: realloc (vg_replace_malloc.c:1437) ==325982== by 0x59D952D: g_realloc (in /usr/lib64/libglib-2.0.so.0.5600.4) ==325982== by 0x4EE1F52: virReallocN (viralloc.c:52) ==325982== by 0x4EE1FB7: virExpandN (viralloc.c:78) ==325982== by 0x4EE219A: virInsertElementInternal (viralloc.c:183) ==325982== by 0x4EE23B2: virAppendElement (viralloc.c:288) ==325982== by 0x4F65D85: virPCIGetVirtualFunctionsFull (virpci.c:2389) ==325982== by 0x4F65753: virPCIGetVirtualFunctions (virpci.c:2256) ==325982== by 0x505CB75: virNodeDeviceGetPCISRIOVCaps (node_device_conf.c:2969) ==325982== by 0x505D181: virNodeDeviceGetPCIDynamicCaps (node_device_conf.c:3099) ==325982== by 0x505BC4E: virNodeDeviceUpdateCaps (node_device_conf.c:2677) ==325982== by 0x260FCBB2: nodeDeviceGetXMLDesc (node_device_driver.c:355) Signed-off-by: Tim Shearer <tshearer@xxxxxxxx> --- src/util/virpci.c | 1 + 1 file changed, 1 insertion(+)
Reviewed-by: Ján Tomko <jtomko@xxxxxxxxxx> Jano
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