Upstream information
Description
In the Linux kernel, the following vulnerability has been resolved:net: fix data-races around sk->sk_forward_alloc
Syzkaller reported this warning:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 16 at net/ipv4/af_inet.c:156 inet_sock_destruct+0x1c5/0x1e0
Modules linked in:
CPU: 0 UID: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.12.0-rc5 #26
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014
RIP: 0010:inet_sock_destruct+0x1c5/0x1e0
Code: 24 12 4c 89 e2 5b 48 c7 c7 98 ec bb 82 41 5c e9 d1 18 17 ff 4c 89 e6 5b 48 c7 c7 d0 ec bb 82 41 5c e9 bf 18 17 ff 0f 0b eb 83 <0f> 0b eb 97 0f 0b eb 87 0f 0b e9 68 ff ff ff 66 66 2e 0f 1f 84 00
RSP: 0018:ffffc9000008bd90 EFLAGS: 00010206
RAX: 0000000000000300 RBX: ffff88810b172a90 RCX: 0000000000000007
RDX: 0000000000000002 RSI: 0000000000000300 RDI: ffff88810b172a00
RBP: ffff88810b172a00 R08: ffff888104273c00 R09: 0000000000100007
R10: 0000000000020000 R11: 0000000000000006 R12: ffff88810b172a00
R13: 0000000000000004 R14: 0000000000000000 R15: ffff888237c31f78
FS: 0000000000000000(0000) GS:ffff888237c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc63fecac8 CR3: 000000000342e000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
? __warn+0x88/0x130
? inet_sock_destruct+0x1c5/0x1e0
? report_bug+0x18e/0x1a0
? handle_bug+0x53/0x90
? exc_invalid_op+0x18/0x70
? asm_exc_invalid_op+0x1a/0x20
? inet_sock_destruct+0x1c5/0x1e0
__sk_destruct+0x2a/0x200
rcu_do_batch+0x1aa/0x530
? rcu_do_batch+0x13b/0x530
rcu_core+0x159/0x2f0
handle_softirqs+0xd3/0x2b0
? __pfx_smpboot_thread_fn+0x10/0x10
run_ksoftirqd+0x25/0x30
smpboot_thread_fn+0xdd/0x1d0
kthread+0xd3/0x100
? __pfx_kthread+0x10/0x10
ret_from_fork+0x34/0x50
? __pfx_kthread+0x10/0x10
ret_from_fork_asm+0x1a/0x30
</TASK>
---[ end trace 0000000000000000 ]---
Its possible that two threads call tcp_v6_do_rcv()/sk_forward_alloc_add()
concurrently when sk->sk_state == TCP_LISTEN with sk->sk_lock unlocked,
which triggers a data-race around sk->sk_forward_alloc:
tcp_v6_rcv
tcp_v6_do_rcv
skb_clone_and_charge_r
sk_rmem_schedule
__sk_mem_schedule
sk_forward_alloc_add()
skb_set_owner_r
sk_mem_charge
sk_forward_alloc_add()
__kfree_skb
skb_release_all
skb_release_head_state
sock_rfree
sk_mem_uncharge
sk_forward_alloc_add()
sk_mem_reclaim
// set local var reclaimable
__sk_mem_reclaim
sk_forward_alloc_add()
In this syzkaller testcase, two threads call
tcp_v6_do_rcv() with skb->truesize=768, the sk_forward_alloc changes like
this:
(cpu 1) | (cpu 2) | sk_forward_alloc
... | ... | 0
__sk_mem_schedule() | | +4096 = 4096
| __sk_mem_schedule() | +4096 = 8192
sk_mem_charge() | | -768 = 7424
| sk_mem_charge() | -768 = 6656
... | ... |
sk_mem_uncharge() | | +768 = 7424
reclaimable=7424 | |
| sk_mem_uncharge() | +768 = 8192
| reclaimable=8192 |
__sk_mem_reclaim() | | -4096 = 4096
| __sk_mem_reclaim() | -8192 = -4096 != 0
The skb_clone_and_charge_r() should not be called in tcp_v6_do_rcv() when
sk->sk_state is TCP_LISTEN, it happens later in tcp_v6_syn_recv_sock().
Fix the same issue in dccp_v6_do_rcv().
SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having moderate severity.
National Vulnerability Database | SUSE | |
---|---|---|
Base Score | 4.7 | 5.5 |
Vector | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Attack Vector | Local | Local |
Attack Complexity | High | Low |
Privileges Required | Low | Low |
User Interaction | None | None |
Scope | Unchanged | Unchanged |
Confidentiality Impact | None | None |
Integrity Impact | None | None |
Availability Impact | High | High |
CVSSv3 Version | 3.1 | 3.1 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
Product(s) | Source package | State |
---|---|---|
Products under general support and receiving all security fixes. | ||
SUSE Linux Enterprise Desktop 15 SP5 | kernel-default | Affected |
SUSE Linux Enterprise Desktop 15 SP5 | kernel-source | Affected |
SUSE Linux Enterprise Desktop 15 SP6 | kernel-default | Affected |
SUSE Linux Enterprise Desktop 15 SP6 | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP5 | kernel-default | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP5 | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP5 | kernel-source-azure | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP6 | kernel-default | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP6 | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP6 | kernel-source-azure | Affected |
SUSE Linux Enterprise Live Patching 15 SP5 | kernel-default | Affected |
SUSE Linux Enterprise Live Patching 15 SP5 | kernel-source | Affected |
SUSE Linux Enterprise Live Patching 15 SP6 | kernel-default | Affected |
SUSE Linux Enterprise Live Patching 15 SP6 | kernel-source | Affected |
SUSE Linux Enterprise Micro 5.1 | kernel-default | Affected |
SUSE Linux Enterprise Micro 5.1 | kernel-rt | Affected |
SUSE Linux Enterprise Micro 5.1 | kernel-source | Affected |
SUSE Linux Enterprise Micro 5.1 | kernel-source-rt | Affected |
SUSE Linux Enterprise Micro 5.2 | kernel-default | Affected |
SUSE Linux Enterprise Micro 5.2 | kernel-rt | Affected |
SUSE Linux Enterprise Micro 5.2 | kernel-source | Affected |
SUSE Linux Enterprise Micro 5.2 | kernel-source-rt | Affected |
SUSE Linux Enterprise Micro 5.3 | kernel-default | Affected |
SUSE Linux Enterprise Micro 5.3 | kernel-rt | Affected |
SUSE Linux Enterprise Micro 5.3 | kernel-source | Affected |
SUSE Linux Enterprise Micro 5.3 | kernel-source-rt | Affected |
SUSE Linux Enterprise Micro 5.4 | kernel-default | Affected |
SUSE Linux Enterprise Micro 5.4 | kernel-rt | Affected |
SUSE Linux Enterprise Micro 5.4 | kernel-source | Affected |
SUSE Linux Enterprise Micro 5.4 | kernel-source-rt | Affected |
SUSE Linux Enterprise Micro 5.5 | kernel-default | Affected |
SUSE Linux Enterprise Micro 5.5 | kernel-source | Affected |
SUSE Linux Enterprise Micro 5.5 | kernel-source-rt | Affected |
SUSE Linux Enterprise Micro 6.0 | kernel-default | Affected |
SUSE Linux Enterprise Micro 6.0 | kernel-source | Affected |
SUSE Linux Enterprise Micro 6.0 | kernel-source-rt | Affected |
SUSE Linux Enterprise Module for Basesystem 15 SP5 | kernel-default | Affected |
SUSE Linux Enterprise Module for Basesystem 15 SP5 | kernel-source | Affected |
SUSE Linux Enterprise Module for Basesystem 15 SP6 | kernel-default | Affected |
SUSE Linux Enterprise Module for Basesystem 15 SP6 | kernel-source | Affected |
SUSE Linux Enterprise Module for Development Tools 15 SP5 | kernel-default | Affected |
SUSE Linux Enterprise Module for Development Tools 15 SP5 | kernel-source | Affected |
SUSE Linux Enterprise Module for Development Tools 15 SP6 | kernel-default | Affected |
SUSE Linux Enterprise Module for Development Tools 15 SP6 | kernel-source | Affected |
SUSE Linux Enterprise Module for Public Cloud 15 SP5 | kernel-source-azure | Affected |
SUSE Linux Enterprise Module for Public Cloud 15 SP6 | kernel-source-azure | Affected |
SUSE Linux Enterprise Real Time 15 SP5 | kernel-source-rt | Affected |
SUSE Linux Enterprise Real Time 15 SP6 | kernel-source-rt | Affected |
SUSE Linux Enterprise Server 15 SP5 | kernel-default | Affected |
SUSE Linux Enterprise Server 15 SP5 | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP5 | kernel-source-azure | Affected |
SUSE Linux Enterprise Server 15 SP6 | kernel-default | Affected |
SUSE Linux Enterprise Server 15 SP6 | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP6 | kernel-source-azure | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP5 | kernel-default | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP5 | kernel-source | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP5 | kernel-source-azure | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP6 | kernel-default | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP6 | kernel-source | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP6 | kernel-source-azure | Affected |
SUSE Manager Proxy 4.3 | kernel-default | Affected |
SUSE Manager Proxy 4.3 | kernel-source | Affected |
SUSE Manager Retail Branch Server 4.3 | kernel-default | Affected |
SUSE Manager Retail Branch Server 4.3 | kernel-source | Affected |
SUSE Manager Server 4.3 | kernel-default | Affected |
SUSE Manager Server 4.3 | kernel-source | Affected |
SUSE Real Time Module 15 SP5 | kernel-source-rt | Affected |
SUSE Real Time Module 15 SP6 | kernel-source-rt | Affected |
openSUSE Leap 15.5 | kernel-default | Affected |
openSUSE Leap 15.5 | kernel-source | Affected |
openSUSE Leap 15.5 | kernel-source-azure | Affected |
openSUSE Leap 15.5 | kernel-source-rt | Affected |
openSUSE Leap 15.6 | kernel-default | Affected |
openSUSE Leap 15.6 | kernel-source | Affected |
openSUSE Leap 15.6 | kernel-source-azure | Affected |
openSUSE Leap 15.6 | kernel-source-rt | Affected |
Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
SUSE Linux Enterprise Desktop 15 SP4 | kernel-source | Affected |
SUSE Linux Enterprise High Availability Extension 12 SP5 | kernel-default | Affected |
SUSE Linux Enterprise High Availability Extension 12 SP5 | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP2 | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP2-ESPOS | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-default | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP3 | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-default | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP4 | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-default | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | kernel-default | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS | kernel-source | Affected |
SUSE Linux Enterprise Live Patching 12 SP5 | kernel-default | Affected |
SUSE Linux Enterprise Live Patching 12 SP5 | kernel-source | Affected |
SUSE Linux Enterprise Live Patching 15 SP2 | kernel-default | Affected |
SUSE Linux Enterprise Live Patching 15 SP2 | kernel-source | Affected |
SUSE Linux Enterprise Live Patching 15 SP3 | kernel-default | Affected |
SUSE Linux Enterprise Live Patching 15 SP3 | kernel-source | Affected |
SUSE Linux Enterprise Live Patching 15 SP4 | kernel-default | Affected |
SUSE Linux Enterprise Live Patching 15 SP4 | kernel-source | Affected |
SUSE Linux Enterprise Module for Basesystem 15 SP2 | kernel-source | Affected |
SUSE Linux Enterprise Module for Basesystem 15 SP3 | kernel-source | Affected |
SUSE Linux Enterprise Module for Basesystem 15 SP4 | kernel-source | Affected |
SUSE Linux Enterprise Module for Development Tools 15 SP2 | kernel-source | Affected |
SUSE Linux Enterprise Module for Development Tools 15 SP3 | kernel-source | Affected |
SUSE Linux Enterprise Module for Development Tools 15 SP4 | kernel-source | Affected |
SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | kernel-default | Not affected |
SUSE Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | kernel-source | Not affected |
SUSE Linux Enterprise Server 12 SP5 | kernel-source | Affected |
SUSE Linux Enterprise Server 12 SP5 | kernel-source-azure | Affected |
SUSE Linux Enterprise Server 12 SP5-LTSS | kernel-default | Affected |
SUSE Linux Enterprise Server 12 SP5-LTSS | kernel-source | Affected |
SUSE Linux Enterprise Server 12 SP5-LTSS | kernel-source-azure | Affected |
SUSE Linux Enterprise Server 15 SP2 | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP2-LTSS | kernel-default | Affected |
SUSE Linux Enterprise Server 15 SP2-LTSS | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP3 | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP3-LTSS | kernel-default | Affected |
SUSE Linux Enterprise Server 15 SP3-LTSS | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP4 | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP4-LTSS | kernel-default | Affected |
SUSE Linux Enterprise Server 15 SP4-LTSS | kernel-source | Affected |
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | kernel-source | Affected |
SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | kernel-source-azure | Affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP5 | kernel-default | Affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP5 | kernel-source | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP2 | kernel-default | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP2 | kernel-source | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP3 | kernel-default | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP3 | kernel-source | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP4 | kernel-default | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP4 | kernel-source | Affected |
Products past their end of life and not receiving proactive updates anymore. | ||
HPE Helion OpenStack 8 | kernel-source | Affected |
SUSE CaaS Platform 4.0 | kernel-source | Affected |
SUSE CaaS Platform Toolchain 3 | kernel-source | Affected |
SUSE Enterprise Storage 6 | kernel-source | Affected |
SUSE Enterprise Storage 7 | kernel-source | Affected |
SUSE Enterprise Storage 7.1 | kernel-source | Affected |
SUSE Linux Enterprise Desktop 11 SP4 | kernel-source | Not affected |
SUSE Linux Enterprise Desktop 12 SP2 | kernel-source | Affected |
SUSE Linux Enterprise Desktop 12 SP3 | kernel-source | Affected |
SUSE Linux Enterprise Desktop 12 SP4 | kernel-source | Affected |
SUSE Linux Enterprise Desktop 15 | kernel-source | Affected |
SUSE Linux Enterprise Desktop 15 SP1 | kernel-source | Affected |
SUSE Linux Enterprise Desktop 15 SP2 | kernel-source | Affected |
SUSE Linux Enterprise Desktop 15 SP3 | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP1 | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15-ESPOS | kernel-source | Affected |
SUSE Linux Enterprise High Performance Computing 15-LTSS | kernel-source | Affected |
SUSE Linux Enterprise Micro 5.0 | kernel-default | Affected |
SUSE Linux Enterprise Module for Basesystem 15 | kernel-source | Affected |
SUSE Linux Enterprise Module for Basesystem 15 SP1 | kernel-source | Affected |
SUSE Linux Enterprise Module for Development Tools 15 | kernel-source | Affected |
SUSE Linux Enterprise Module for Development Tools 15 SP1 | kernel-source | Affected |
SUSE Linux Enterprise Point of Sale 12 SP2-CLIENT | kernel-source | Affected |
SUSE Linux Enterprise Real Time 15 SP2 | kernel-source | Affected |
SUSE Linux Enterprise Real Time 15 SP3 | kernel-source | Affected |
SUSE Linux Enterprise Real Time 15 SP3 | kernel-source-rt | Affected |
SUSE Linux Enterprise Real Time 15 SP4 | kernel-source | Affected |
SUSE Linux Enterprise Real Time 15 SP4 | kernel-source-rt | Affected |
SUSE Linux Enterprise Server 11 SP4 | kernel-source | Not affected |
SUSE Linux Enterprise Server 11 SP4 LTSS | kernel-default | Not affected |
SUSE Linux Enterprise Server 11 SP4 LTSS | kernel-source | Not affected |
SUSE Linux Enterprise Server 11 SP4-LTSS | kernel-source | Not affected |
SUSE Linux Enterprise Server 12 SP2 | kernel-source | Affected |
SUSE Linux Enterprise Server 12 SP2-BCL | kernel-source | Affected |
SUSE Linux Enterprise Server 12 SP2-ESPOS | kernel-source | Affected |
SUSE Linux Enterprise Server 12 SP2-LTSS | kernel-default | Affected |
SUSE Linux Enterprise Server 12 SP2-LTSS | kernel-source | Affected |
SUSE Linux Enterprise Server 12 SP3 | kernel-source | Affected |
SUSE Linux Enterprise Server 12 SP3-BCL | kernel-source | Affected |
SUSE Linux Enterprise Server 12 SP3-ESPOS | kernel-source | Affected |
SUSE Linux Enterprise Server 12 SP3-LTSS | kernel-source | Affected |
SUSE Linux Enterprise Server 12 SP4 | kernel-source | Affected |
SUSE Linux Enterprise Server 12 SP4-ESPOS | kernel-source | Affected |
SUSE Linux Enterprise Server 12 SP4-LTSS | kernel-default | Affected |
SUSE Linux Enterprise Server 12 SP4-LTSS | kernel-source | Affected |
SUSE Linux Enterprise Server 15 | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP1 | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP1-BCL | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP1-LTSS | kernel-default | Affected |
SUSE Linux Enterprise Server 15 SP1-LTSS | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP2-BCL | kernel-source | Affected |
SUSE Linux Enterprise Server 15 SP3-BCL | kernel-source | Affected |
SUSE Linux Enterprise Server 15-LTSS | kernel-default | Affected |
SUSE Linux Enterprise Server 15-LTSS | kernel-source | Affected |
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 | kernel-source | Affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP2 | kernel-source | Affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP3 | kernel-source | Affected |
SUSE Linux Enterprise Server for SAP Applications 12 SP4 | kernel-source | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 | kernel-source | Affected |
SUSE Linux Enterprise Server for SAP Applications 15 SP1 | kernel-source | Affected |
SUSE Manager Proxy 4.0 | kernel-source | Affected |
SUSE Manager Proxy 4.1 | kernel-source | Affected |
SUSE Manager Proxy 4.2 | kernel-source | Affected |
SUSE Manager Retail Branch Server 4.0 | kernel-source | Affected |
SUSE Manager Retail Branch Server 4.1 | kernel-source | Affected |
SUSE Manager Retail Branch Server 4.2 | kernel-source | Affected |
SUSE Manager Server 4.0 | kernel-source | Affected |
SUSE Manager Server 4.1 | kernel-source | Affected |
SUSE Manager Server 4.2 | kernel-source | Affected |
SUSE OpenStack Cloud 7 | kernel-source | Affected |
SUSE OpenStack Cloud 8 | kernel-source | Affected |
SUSE OpenStack Cloud 9 | kernel-source | Affected |
SUSE OpenStack Cloud Crowbar 8 | kernel-source | Affected |
SUSE OpenStack Cloud Crowbar 9 | kernel-source | Affected |
SUSE Real Time Module 15 SP3 | kernel-source-rt | Affected |
SUSE Real Time Module 15 SP4 | kernel-source-rt | Affected |
openSUSE Leap 15.3 | kernel-source | Affected |
openSUSE Leap 15.3 | kernel-source-rt | Affected |
openSUSE Leap 15.4 | kernel-source | Affected |
openSUSE Leap 15.4 | kernel-source-azure | Unsupported |
openSUSE Leap 15.4 | kernel-source-rt | Affected |
SUSE Timeline for this CVE
CVE page created: Mon Dec 2 16:00:33 2024CVE page last modified: Thu Dec 12 12:04:38 2024