What is CVE-2022-49333?

CVE-2022-49333 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.13.8 onward and patched in 5.17.15, 5.18.4 and 5.19. CVE-2022-49333 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49333?

CVE-2022-49333 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2022-49333?

Yes, CVE-2022-49333 has been patched. Fixed versions include 5.17.15, 5.18.4 and 5.19. If you are running Linux kernel 5.13.8 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49333 actively exploited?

CVE-2022-49333 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49333

Medium

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: E-Switch, pair only capable devices OFFLOADS paring using devcom is possible only on devices that support LAG. Filter based on lag capabilities. This fixes an issue where mlx5_get_next_phys_dev() was called without holding the interface lock. This issue was found when commit bc4c2f2e0179 ("net/mlx5: Lag, filter non compatible devices") added an assert that verifies the interface lock is held. WARNING: CPU: 9 PID: 1706 at drivers/net/ethernet/mellanox/mlx5/core/dev.c:642 mlx5_get_next_phys_dev+0xd2/0x100 [mlx5_core] Modules linked in: mlx5_vdpa vringh vhost_iotlb vdpa mlx5_ib mlx5_core xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xt_addrtype iptable_nat nf_nat br_netfilter rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_iscsi rdma_cm iw_cm ib_umad ib_ipoib ib_cm ib_uverbs ib_core overlay fuse [last unloaded: mlx5_core] CPU: 9 PID: 1706 Comm: devlink Not tainted 5.18.0-rc7+ #11 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:mlx5_get_next_phys_dev+0xd2/0x100 [mlx5_core] Code: 02 00 75 48 48 8b 85 80 04 00 00 5d c3 31 c0 5d c3 be ff ff ff ff 48 c7 c7 08 41 5b a0 e8 36 87 28 e3 85 c0 0f 85 6f ff ff ff <0f> 0b e9 68 ff ff ff 48 c7 c7 0c 91 cc 84 e8 cb 36 6f e1 e9 4d ff RSP: 0018:ffff88811bf47458 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88811b398000 RCX: 0000000000000001 RDX: 0000000080000000 RSI: ffffffffa05b4108 RDI: ffff88812daaaa78 RBP: ffff88812d050380 R08: 0000000000000001 R09: ffff88811d6b3437 R10: 0000000000000001 R11: 00000000fddd3581 R12: ffff88815238c000 R13: ffff88812d050380 R14: ffff8881018aa7e0 R15: ffff88811d6b3428 FS: 00007fc82e18ae80(0000) GS:ffff88842e080000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9630d1b421 CR3: 0000000149802004 CR4: 0000000000370ea0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> mlx5_esw_offloads_devcom_event+0x99/0x3b0 [mlx5_core] mlx5_devcom_send_event+0x167/0x1d0 [mlx5_core] esw_offloads_enable+0x1153/0x1500 [mlx5_core] ? mlx5_esw_offloads_controller_valid+0x170/0x170 [mlx5_core] ? wait_for_completion_io_timeout+0x20/0x20 ? mlx5_rescan_drivers_locked+0x318/0x810 [mlx5_core] mlx5_eswitch_enable_locked+0x586/0xc50 [mlx5_core] ? mlx5_eswitch_disable_pf_vf_vports+0x1d0/0x1d0 [mlx5_core] ? mlx5_esw_try_lock+0x1b/0xb0 [mlx5_core] ? mlx5_eswitch_enable+0x270/0x270 [mlx5_core] ? __debugfs_create_file+0x260/0x3e0 mlx5_devlink_eswitch_mode_set+0x27e/0x870 [mlx5_core] ? mutex_lock_io_nested+0x12c0/0x12c0 ? esw_offloads_disable+0x250/0x250 [mlx5_core] ? devlink_nl_cmd_trap_get_dumpit+0x470/0x470 ? rcu_read_lock_sched_held+0x3f/0x70 devlink_nl_cmd_eswitch_set_doit+0x217/0x620

Package Linux Kernel

Published 2025-02-26

Last modified 2025-10-21

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected versions

Linux kernel versions 5.13.8, 5.14 and later are affected. Fixed in 5.17.15, 5.18.4, 5.19 and their respective stable series.

Affected from

≥ 5.13.8 ≥ 5.14

Fixed in

✓ 5.17.15 5.17.x ✓ 5.18.4 5.18.x ✓ 5.19

References

The following references provide additional information about CVE-2022-49333 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/0cef0b7eb044bb8cfdaff4c1db55a8fd442f6bc9
Patch
Kernel patch commit
https://git.kernel.org/stable/c/3008e6a0049361e731b803c60fe8f3ab44e1d73f
Patch
Kernel patch commit
https://git.kernel.org/stable/c/cdbcdddb8076a09aa6ddaf20fd911fc787dca0e5
Patch

Details

CVE ID CVE-2022-49333

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-02-26

Modified 2025-10-21

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49333?

CVE-2022-49333 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.13.8 onward and has been patched in 5.17.15, 5.18.4 and 5.19. CVE-2022-49333 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49333?

CVE-2022-49333 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2022-49333?

Yes — CVE-2022-49333 has been patched. Fixed versions include 5.17.15, 5.18.4 and 5.19. If you are running Linux kernel 5.13.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49333 actively exploited?

No — CVE-2022-49333 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.