diff options
Diffstat (limited to 'meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2024-36008.patch')
| -rw-r--r-- | meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2024-36008.patch | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2024-36008.patch b/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2024-36008.patch new file mode 100644 index 000000000..240e50046 --- /dev/null +++ b/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2024-36008.patch @@ -0,0 +1,81 @@ +From 03b5a9b2b526862b21bcc31976e393a6e63785d1 Mon Sep 17 00:00:00 2001 +From: Eric Dumazet <edumazet@google.com> +Date: Sun, 21 Apr 2024 18:43:26 +0000 +Subject: ipv4: check for NULL idev in ip_route_use_hint() + +[ Upstream commit 58a4c9b1e5a3e53c9148e80b90e1e43897ce77d1 ] + +syzbot was able to trigger a NULL deref in fib_validate_source() +in an old tree [1]. + +It appears the bug exists in latest trees. + +All calls to __in_dev_get_rcu() must be checked for a NULL result. + +[1] +general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN +KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] +CPU: 2 PID: 3257 Comm: syz-executor.3 Not tainted 5.10.0-syzkaller #0 +Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 + RIP: 0010:fib_validate_source+0xbf/0x15a0 net/ipv4/fib_frontend.c:425 +Code: 18 f2 f2 f2 f2 42 c7 44 20 23 f3 f3 f3 f3 48 89 44 24 78 42 c6 44 20 27 f3 e8 5d 88 48 fc 4c 89 e8 48 c1 e8 03 48 89 44 24 18 <42> 80 3c 20 00 74 08 4c 89 ef e8 d2 15 98 fc 48 89 5c 24 10 41 bf +RSP: 0018:ffffc900015fee40 EFLAGS: 00010246 +RAX: 0000000000000000 RBX: ffff88800f7a4000 RCX: ffff88800f4f90c0 +RDX: 0000000000000000 RSI: 0000000004001eac RDI: ffff8880160c64c0 +RBP: ffffc900015ff060 R08: 0000000000000000 R09: ffff88800f7a4000 +R10: 0000000000000002 R11: ffff88800f4f90c0 R12: dffffc0000000000 +R13: 0000000000000000 R14: 0000000000000000 R15: ffff88800f7a4000 +FS: 00007f938acfe6c0(0000) GS:ffff888058c00000(0000) knlGS:0000000000000000 +CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 +CR2: 00007f938acddd58 CR3: 000000001248e000 CR4: 0000000000352ef0 +DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 +DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 +Call Trace: + ip_route_use_hint+0x410/0x9b0 net/ipv4/route.c:2231 + ip_rcv_finish_core+0x2c4/0x1a30 net/ipv4/ip_input.c:327 + ip_list_rcv_finish net/ipv4/ip_input.c:612 [inline] + ip_sublist_rcv+0x3ed/0xe50 net/ipv4/ip_input.c:638 + ip_list_rcv+0x422/0x470 net/ipv4/ip_input.c:673 + __netif_receive_skb_list_ptype net/core/dev.c:5572 [inline] + __netif_receive_skb_list_core+0x6b1/0x890 net/core/dev.c:5620 + __netif_receive_skb_list net/core/dev.c:5672 [inline] + netif_receive_skb_list_internal+0x9f9/0xdc0 net/core/dev.c:5764 + netif_receive_skb_list+0x55/0x3e0 net/core/dev.c:5816 + xdp_recv_frames net/bpf/test_run.c:257 [inline] + xdp_test_run_batch net/bpf/test_run.c:335 [inline] + bpf_test_run_xdp_live+0x1818/0x1d00 net/bpf/test_run.c:363 + bpf_prog_test_run_xdp+0x81f/0x1170 net/bpf/test_run.c:1376 + bpf_prog_test_run+0x349/0x3c0 kernel/bpf/syscall.c:3736 + __sys_bpf+0x45c/0x710 kernel/bpf/syscall.c:5115 + __do_sys_bpf kernel/bpf/syscall.c:5201 [inline] + __se_sys_bpf kernel/bpf/syscall.c:5199 [inline] + __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5199 + +Fixes: 02b24941619f ("ipv4: use dst hint for ipv4 list receive") +Reported-by: syzbot <syzkaller@googlegroups.com> +Signed-off-by: Eric Dumazet <edumazet@google.com> +Acked-by: Paolo Abeni <pabeni@redhat.com> +Link: https://lore.kernel.org/r/20240421184326.1704930-1-edumazet@google.com +Signed-off-by: Jakub Kicinski <kuba@kernel.org> +Signed-off-by: Sasha Levin <sashal@kernel.org> +--- + net/ipv4/route.c | 3 +++ + 1 file changed, 3 insertions(+) + +diff --git a/net/ipv4/route.c b/net/ipv4/route.c +index 4ff94596f8cd5a..895754439393e1 100644 +--- a/net/ipv4/route.c ++++ b/net/ipv4/route.c +@@ -2173,6 +2173,9 @@ int ip_route_use_hint(struct sk_buff *skb, __be32 daddr, __be32 saddr, + int err = -EINVAL; + u32 tag = 0; + ++ if (!in_dev) ++ return -EINVAL; ++ + if (ipv4_is_multicast(saddr) || ipv4_is_lbcast(saddr)) + goto martian_source; + +-- +cgit 1.2.3-korg + |