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Add nullptr check in addrconf_rt_table (#83)

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Robbe Derks
2025-03-12 00:47:04 +01:00
committed by GitHub
parent 8a9593b783
commit b72c1b0eb3
1 changed files with 6 additions and 1 deletions
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7
net/ipv6/addrconf.c
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@@ -2231,8 +2231,13 @@ u32 addrconf_rt_table(const struct net_device *dev, u32 default_table) {
* - If < 0, put routes into table dev->ifindex + (-rt_table). * - If < 0, put routes into table dev->ifindex + (-rt_table).
*/ */
struct inet6_dev *idev = in6_dev_get(dev); struct inet6_dev *idev = in6_dev_get(dev);
int sysctl;
u32 table; u32 table;
int sysctl = idev->cnf.accept_ra_rt_table;
if (!idev)
return default_table;
sysctl = idev->cnf.accept_ra_rt_table;
if (sysctl == 0) { if (sysctl == 0) {
table = default_table; table = default_table;
} else if (sysctl > 0) { } else if (sysctl > 0) {