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authorPavel Skripkin <paskripkin@gmail.com>2021-07-05 23:47:27 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-09-15 10:47:28 +0300
commit67da2d9c9e9943be4258ee94906cf3be367df152 (patch)
tree5c547e4717cbc6b5b39fe05eab14dca879049f6e /arch/m68k
parentc68ba4a708fbd0efdc384cd29250bb292a45e559 (diff)
downloadlinux-67da2d9c9e9943be4258ee94906cf3be367df152.tar.xz
m68k: emu: Fix invalid free in nfeth_cleanup()
[ Upstream commit 761608f5cf70e8876c2f0e39ca54b516bdcb7c12 ] In the for loop all nfeth_dev array members should be freed, not only the first one. Freeing only the first array member can cause double-free bugs and memory leaks. Fixes: 9cd7b148312f ("m68k/atari: ARAnyM - Add support for network access") Signed-off-by: Pavel Skripkin <paskripkin@gmail.com> Link: https://lore.kernel.org/r/20210705204727.10743-1-paskripkin@gmail.com Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/m68k')
-rw-r--r--arch/m68k/emu/nfeth.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/m68k/emu/nfeth.c b/arch/m68k/emu/nfeth.c
index a4ebd2445eda..e5831cd293d0 100644
--- a/arch/m68k/emu/nfeth.c
+++ b/arch/m68k/emu/nfeth.c
@@ -254,8 +254,8 @@ static void __exit nfeth_cleanup(void)
for (i = 0; i < MAX_UNIT; i++) {
if (nfeth_dev[i]) {
- unregister_netdev(nfeth_dev[0]);
- free_netdev(nfeth_dev[0]);
+ unregister_netdev(nfeth_dev[i]);
+ free_netdev(nfeth_dev[i]);
}
}
free_irq(nfEtherIRQ, nfeth_interrupt);