Description
In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_rbtree: fix null deref on element insertion There is no guarantee that rb_prev() will not return NULL in nft_rbtree_gc_elem(): general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f] nft_add_set_elem+0x14b0/0x2990 nf_tables_newsetelem+0x528/0xb30 Furthermore, there is a possible use-after-free while iterating, 'node' can be free'd so we need to cache the next value to use.
Product status
7ab87a326f20c52ff4d9972052d085be951c704b before b76db53ee8802ee5683f8cb401d7e2ec6f9b3d56
181859bdfb9734aca449512fccaee4cacce64aed before 899aa5638568abf5d69de7a7bb95e4615157375b
4aacf3d78424293e318c616016865380b37b9cc5 before 3fa13203b6d90cc3a33af47b058739f92ab82eef
2bf1435fa19d2c58054391b3bba40d5510a5758c before ec5caa765f7f6960011c919c9aeb1467940421f6
318cb24a4c3fce8140afaf84e4d45fcb76fb280b before a836be60a3aabcedcd9c79f545d409ace1f20ba6
c9e6978e2725a7d4b6cd23b2facd3f11422c0643 before a337706c1fb35aac3f26b48aca80421bdbe1d33a
c9e6978e2725a7d4b6cd23b2facd3f11422c0643 before 61ae320a29b0540c16931816299eb86bf2b66c08
6.2
Any version before 6.2
5.10.181
5.15.113
6.1.30
6.3.4
6.4
References
git.kernel.org/...c/b76db53ee8802ee5683f8cb401d7e2ec6f9b3d56
git.kernel.org/...c/899aa5638568abf5d69de7a7bb95e4615157375b
git.kernel.org/...c/3fa13203b6d90cc3a33af47b058739f92ab82eef
git.kernel.org/...c/ec5caa765f7f6960011c919c9aeb1467940421f6
git.kernel.org/...c/a836be60a3aabcedcd9c79f545d409ace1f20ba6
git.kernel.org/...c/a337706c1fb35aac3f26b48aca80421bdbe1d33a
git.kernel.org/...c/61ae320a29b0540c16931816299eb86bf2b66c08
