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CVE-2024-33621

Status Candidate

Overview

In the Linux kernel, the following vulnerability has been resolved: ipvlan: Dont Use skb->sk in ipvlan_process_v{4,6}_outbound Raw packet from PF_PACKET socket ontop of an IPv6-backed ipvlan device will hit WARN_ON_ONCE() in sk_mc_loop() through sch_direct_xmit() path. WARNING: CPU: 2 PID: 0 at net/core/sock.c:775 sk_mc_loop+0x2d/0x70 Modules linked in: sch_netem ipvlan rfkill cirrus drm_shmem_helper sg drm_kms_helper CPU: 2 PID: 0 Comm: swapper/2 Kdump: loaded Not tainted 6.9.0+ #279 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 RIP: 0010:sk_mc_loop+0x2d/0x70 Code: fa 0f 1f 44 00 00 65 0f b7 15 f7 96 a3 4f 31 c0 66 85 d2 75 26 48 85 ff 74 1c RSP: 0018:ffffa9584015cd78 EFLAGS: 00010212 RAX: 0000000000000011 RBX: ffff91e585793e00 RCX: 0000000002c6a001 RDX: 0000000000000000 RSI: 0000000000000040 RDI: ffff91e589c0f000 RBP: ffff91e5855bd100 R08: 0000000000000000 R09: 3d00545216f43d00 R10: ffff91e584fdcc50 R11: 00000060dd8616f4 R12: ffff91e58132d000 R13: ffff91e584fdcc68 R14: ffff91e5869ce800 R15: ffff91e589c0f000 FS: 0000000000000000(0000) GS:ffff91e898100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f788f7c44c0 CR3: 0000000008e1a000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <IRQ> ? __warn (kernel/panic.c:693) ? sk_mc_loop (net/core/sock.c:760) ? report_bug (lib/bug.c:201 lib/bug.c:219) ? handle_bug (arch/x86/kernel/traps.c:239) ? exc_invalid_op (arch/x86/kernel/traps.c:260 (discriminator 1)) ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) ? sk_mc_loop (net/core/sock.c:760) ip6_finish_output2 (net/ipv6/ip6_output.c:83 (discriminator 1)) ? nf_hook_slow (net/netfilter/core.c:626) ip6_finish_output (net/ipv6/ip6_output.c:222) ? __pfx_ip6_finish_output (net/ipv6/ip6_output.c:215) ipvlan_xmit_mode_l3 (drivers/net/ipvlan/ipvlan_core.c:602) ipvlan ipvlan_start_xmit (drivers/net/ipvlan/ipvlan_main.c:226) ipvlan dev_hard_start_xmit (net/core/dev.c:3594) sch_direct_xmit (net/sched/sch_generic.c:343) __qdisc_run (net/sched/sch_generic.c:416) net_tx_action (net/core/dev.c:5286) handle_softirqs (kernel/softirq.c:555) __irq_exit_rcu (kernel/softirq.c:589) sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1043) The warning triggers as this: packet_sendmsg packet_snd //skb->sk is packet sk __dev_queue_xmit __dev_xmit_skb //q->enqueue is not NULL __qdisc_run sch_direct_xmit dev_hard_start_xmit ipvlan_start_xmit ipvlan_xmit_mode_l3 //l3 mode ipvlan_process_outbound //vepa flag ipvlan_process_v6_outbound ip6_local_out __ip6_finish_output ip6_finish_output2 //multicast packet sk_mc_loop //sk->sk_family is AF_PACKET Call ip{6}_local_out() with NULL sk in ipvlan as other tunnels to fix this.

Related Files

Ubuntu Security Notice USN-6979-1
Posted Aug 22, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6979-1 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

tags | advisory, kernel
systems | linux, ubuntu
advisories | CVE-2021-47131, CVE-2022-48655, CVE-2022-48772, CVE-2023-52434, CVE-2023-52585, CVE-2023-52882, CVE-2024-26583, CVE-2024-26584, CVE-2024-26907, CVE-2024-27398, CVE-2024-27399, CVE-2024-27401, CVE-2024-31076, CVE-2024-33621
SHA-256 | 45181d380e756f99b4eeeafa375e2c8cc12259e016b7c9172bb138604b02156d
Ubuntu Security Notice USN-6951-4
Posted Aug 22, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6951-4 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

tags | advisory, kernel
systems | linux, ubuntu
advisories | CVE-2022-48674, CVE-2023-52434, CVE-2023-52752, CVE-2024-27398, CVE-2024-27401, CVE-2024-31076, CVE-2024-33621, CVE-2024-35947, CVE-2024-35976, CVE-2024-36014, CVE-2024-36015, CVE-2024-36286, CVE-2024-36883, CVE-2024-36886
SHA-256 | 2e3a6db3903dd7ff1828623ddc100aac2e91d93abaa3a75a243873864d1eb7e3
Ubuntu Security Notice USN-6951-3
Posted Aug 20, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6951-3 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

tags | advisory, kernel
systems | linux, ubuntu
advisories | CVE-2022-48674, CVE-2023-52434, CVE-2023-52752, CVE-2024-27398, CVE-2024-27401, CVE-2024-31076, CVE-2024-33621, CVE-2024-35947, CVE-2024-35976, CVE-2024-36014, CVE-2024-36015, CVE-2024-36286, CVE-2024-36883, CVE-2024-36886
SHA-256 | 8c1f01b0663bf22998e19385fae707029ea2e6973bc55394b2ca20ee8e51eff8
Ubuntu Security Notice USN-6951-2
Posted Aug 15, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6951-2 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

tags | advisory, kernel
systems | linux, ubuntu
advisories | CVE-2022-48674, CVE-2023-52434, CVE-2023-52752, CVE-2024-27398, CVE-2024-27401, CVE-2024-31076, CVE-2024-33621, CVE-2024-35947, CVE-2024-35976, CVE-2024-36014, CVE-2024-36015, CVE-2024-36286, CVE-2024-36883, CVE-2024-36886
SHA-256 | 40333bcb6bfcef7ef0b04b1f7dd14dc7bd1927d82916fa3e2c056ec935a480dd
Ubuntu Security Notice USN-6953-1
Posted Aug 9, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6953-1 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

tags | advisory, kernel
systems | linux, ubuntu
advisories | CVE-2021-47131, CVE-2022-48655, CVE-2022-48674, CVE-2023-52434, CVE-2023-52882, CVE-2024-26583, CVE-2024-26907, CVE-2024-27398, CVE-2024-27401, CVE-2024-33621, CVE-2024-35976, CVE-2024-36016, CVE-2024-36017, CVE-2024-36270
SHA-256 | b1ed67fee33b4917c2d819ae313e1d458b7c4e2db993a5cf83d2ec6c6b54d6dd
Ubuntu Security Notice USN-6951-1
Posted Aug 9, 2024
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6951-1 - Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system.

tags | advisory, kernel
systems | linux, ubuntu
advisories | CVE-2022-48674, CVE-2023-52434, CVE-2023-52752, CVE-2024-27398, CVE-2024-27401, CVE-2024-31076, CVE-2024-33621, CVE-2024-35947, CVE-2024-35976, CVE-2024-36014, CVE-2024-36015, CVE-2024-36286, CVE-2024-36883, CVE-2024-36886
SHA-256 | 1b2472c9b386990fb946c9155e64b258ce63d178132ad4b837e17958bee5634b
Debian Security Advisory 5730-1
Posted Jul 16, 2024
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5730-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or information leaks.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, debian
advisories | CVE-2022-43945, CVE-2022-48772, CVE-2024-25741, CVE-2024-26629, CVE-2024-27019, CVE-2024-31076, CVE-2024-33621, CVE-2024-33847, CVE-2024-34027, CVE-2024-35247, CVE-2024-36014, CVE-2024-36015, CVE-2024-36016, CVE-2024-36270
SHA-256 | 5695db9a181faca11e0a918e56356aebed3f6ade1f14c4e4d4d31b821067795a
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