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In p9_fd_create_unix, checking is performed to see if the addr (passed as an argument) is NULL or not. However, no check is performed to see if addr is a valid address, i.e., it doesn't entirely consist of only 0's. The initialization of sun_server.sun_path to be equal to this faulty addr value leads to an uninitialized variable, as detected by KMSAN. Checking for this (faulty addr) and returning a negative error number appropriately, resolves this issue. Link: http://lkml.kernel.org/r/20201012042404.2508-1-anant.thazhemadam@gmail.com Reported-by: syzbot+75d51fe5bf4ebe988518@syzkaller.appspotmail.com Tested-by: syzbot+75d51fe5bf4ebe988518@syzkaller.appspotmail.com Signed-off-by: Anant Thazhemadam <anant.thazhemadam@gmail.com> Signed-off-by: Dominique Martinet <asmadeus@codewreck.org> |
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| .. | ||
| client.c | ||
| error.c | ||
| Kconfig | ||
| Makefile | ||
| mod.c | ||
| protocol.c | ||
| protocol.h | ||
| trans_common.c | ||
| trans_common.h | ||
| trans_fd.c | ||
| trans_rdma.c | ||
| trans_virtio.c | ||
| trans_xen.c | ||