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2014-06-25xmalloc: Add and use xcallocTobias Klauser1-1/+2
2013-08-11cpusched: Fix compiler warningsTobias Klauser1-3/+3
2013-06-15cpusched: cleanups, refactoring and fix one bugDaniel Borkmann1-49/+28
2013-06-15misc: remove two header commentsDaniel Borkmann1-6/+0
2013-03-15all: import netsniff-ng 0.5.8-rc0 sourceDaniel Borkmann1-0/+180
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-05-07 14:18:46 +0000
9247538f247fce0 (patch) tree9382af67b6bc117766e0ebc8efc0e6f85e43ee53 /lib parent16ae16c6e5616c084168740990fc508bda6655d4 (diff)
X.509: Fix double free in x509_cert_parse() [ver #3]
We shouldn't free cert->pub->key in x509_cert_parse() because x509_free_certificate() also does this: BUG: Double free or freeing an invalid pointer ... Call Trace: [<ffffffff81896c20>] dump_stack+0x63/0x83 [<ffffffff81356571>] kasan_object_err+0x21/0x70 [<ffffffff81356ed9>] kasan_report_double_free+0x49/0x60 [<ffffffff813561ad>] kasan_slab_free+0x9d/0xc0 [<ffffffff81350b7a>] kfree+0x8a/0x1a0 [<ffffffff81844fbf>] public_key_free+0x1f/0x30 [<ffffffff818455d4>] x509_free_certificate+0x24/0x90 [<ffffffff818460bc>] x509_cert_parse+0x2bc/0x300 [<ffffffff81846cae>] x509_key_preparse+0x3e/0x330 [<ffffffff818444cf>] asymmetric_key_preparse+0x6f/0x100 [<ffffffff8178bec0>] key_create_or_update+0x260/0x5f0 [<ffffffff8178e6d9>] SyS_add_key+0x199/0x2a0 [<ffffffff821d823b>] entry_SYSCALL_64_fastpath+0x1e/0xad Object at ffff880110bd1900, in cache kmalloc-512 size: 512 .... Freed: PID = 2579 [<ffffffff8104283b>] save_stack_trace+0x1b/0x20 [<ffffffff813558f6>] save_stack+0x46/0xd0 [<ffffffff81356183>] kasan_slab_free+0x73/0xc0 [<ffffffff81350b7a>] kfree+0x8a/0x1a0 [<ffffffff818460a3>] x509_cert_parse+0x2a3/0x300 [<ffffffff81846cae>] x509_key_preparse+0x3e/0x330 [<ffffffff818444cf>] asymmetric_key_preparse+0x6f/0x100 [<ffffffff8178bec0>] key_create_or_update+0x260/0x5f0 [<ffffffff8178e6d9>] SyS_add_key+0x199/0x2a0 [<ffffffff821d823b>] entry_SYSCALL_64_fastpath+0x1e/0xad Fixes: db6c43bd2132 ("crypto: KEYS: convert public key and digsig asym to the akcipher api") Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: <stable@vger.kernel.org> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: James Morris <james.l.morris@oracle.com>
Diffstat (limited to 'lib')