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Linux KernelOperating system · Linux

CVE-2022-49458

MEDIUM · 5.5 CVSS v3.1 Published 2025-02-26
Fix available
A fix is available. Upgrade to 5.15.46 / 5.17.14 or later.
See remediation →
57/100
Remediation priority · Elevated
Zero-click Patch available

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
In the Linux kernel, the following vulnerability has been resolved: drm/msm: don't free the IRQ if it was not requested As msm_drm_uninit() is called from the msm_drm_init() error path, additional care should be necessary as not to call the free_irq() for the IRQ that was not requested before (because an error occured earlier than the request_irq() call). This fixed the issue reported with the following backtrace: [ 8.571329] Trying to free already-free IRQ 187 [ 8.571339] WARNING: CPU: 0 PID: 76 at kernel/irq/manage.c:1895 free_irq+0x1e0/0x35c [ 8.588746] Modules linked in: pmic_glink pdr_interface fastrpc qrtr_smd snd_soc_hdmi_codec msm fsa4480 gpu_sched drm_dp_aux_bus qrtr i2c_qcom_geni crct10dif_ce qcom_stats qcom_q6v5_pas drm_display_helper gpi qcom_pil_info drm_kms_helper qcom_q6v5 qcom_sysmon qcom_common qcom_glink_smem qcom_rng mdt_loader qmi_helpers phy_qcom_qmp ufs_qcom typec qnoc_sm8350 socinfo rmtfs_mem fuse drm ipv6 [ 8.624154] CPU: 0 PID: 76 Comm: kworker/u16:2 Not tainted 5.18.0-rc5-next-20220506-00033-g6cee8cab6089-dirty #419 [ 8.624161] Hardware name: Qualcomm Technologies, Inc. SM8350 HDK (DT) [ 8.641496] Workqueue: events_unbound deferred_probe_work_func [ 8.647510] pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 8.654681] pc : free_irq+0x1e0/0x35c [ 8.658454] lr : free_irq+0x1e0/0x35c [ 8.662228] sp : ffff800008ab3950 [ 8.665642] x29: ffff800008ab3950 x28: 0000000000000000 x27: ffff16350f56a700 [ 8.672994] x26: ffff1635025df080 x25: ffff16350251badc x24: ffff16350251bb90 [ 8.680343] x23: 0000000000000000 x22: 00000000000000bb x21: ffff16350e8f9800 [ 8.687690] x20: ffff16350251ba00 x19: ffff16350cbd5880 x18: ffffffffffffffff [ 8.695039] x17: 0000000000000000 x16: ffffa2dd12179434 x15: ffffa2dd1431d02d [ 8.702391] x14: 0000000000000000 x13: ffffa2dd1431d028 x12: 662d79646165726c [ 8.709740] x11: ffffa2dd13fd2438 x10: 000000000000000a x9 : 00000000000000bb [ 8.717111] x8 : ffffa2dd13fd23f0 x7 : ffff800008ab3750 x6 : 00000000fffff202 [ 8.724487] x5 : ffff16377e870a18 x4 : 00000000fffff202 x3 : ffff735a6ae1b000 [ 8.731851] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff1635015f8000 [ 8.739217] Call trace: [ 8.741755] free_irq+0x1e0/0x35c [ 8.745198] msm_drm_uninit.isra.0+0x14c/0x294 [msm] [ 8.750548] msm_drm_bind+0x28c/0x5d0 [msm] [ 8.755081] try_to_bring_up_aggregate_device+0x164/0x1d0 [ 8.760657] __component_add+0xa0/0x170 [ 8.764626] component_add+0x14/0x20 [ 8.768337] dp_display_probe+0x2a4/0x464 [msm] [ 8.773242] platform_probe+0x68/0xe0 [ 8.777043] really_probe.part.0+0x9c/0x28c [ 8.781368] __driver_probe_device+0x98/0x144 [ 8.785871] driver_probe_device+0x40/0x140 [ 8.790191] __device_attach_driver+0xb4/0x120 [ 8.794788] bus_for_each_drv+0x78/0xd0 [ 8.798751] __device_attach+0xdc/0x184 [ 8.802713] device_initial_probe+0x14/0x20 [ 8.807031] bus_probe_device+0x9c/0xa4 [ 8.810991] deferred_probe_work_func+0x88/0xc0 [ 8.815667] process_one_work+0x1d0/0x320 [ 8.819809] worker_thread+0x14c/0x444 [ 8.823688] kthread+0x10c/0x110 [ 8.827036] ret_from_fork+0x10/0x20 Patchwork: https://patchwork.freedesktop.org/patch/485422/

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis

A detailed technical summary for this CVE is being prepared.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Linux KernelOperating system
Affected:>= 5.15, < 5.15.46>= 5.16, < 5.17.14>= 5.18, < 5.18.3

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 5.15.46 / 5.17.14 / 5.18.3 or later
Fixed in 5.15.465.17.145.18.3
Vendor patch git.kernel.org →
Recommended fix High confidence

5.15.46 (or later 5.15.x), 5.17.14 (or later 5.17.x), or 5.18.3 (or later 5.18.x)

  1. Identify the currently running kernel version using `uname -r`
  2. Check if the current version is within the affected range: >= 5.15 and < 5.15.46, >= 5.16 and < 5.17.14, or >= 5.18 and < 5.18.3
  3. If affected, upgrade the Linux kernel to version 5.15.46 or later for the 5.15.x branch, 5.17.14 or later for the 5.16.x branch, or 5.18.3 or later for the 5.18.x branch
  4. Reboot the system to load the fixed kernel
  5. Verify the fix is applied by checking the kernel version with `uname -r` and confirming it is >= the appropriate fixed version
Caveat Kernel upgrades may require rebuilding out-of-tree kernel modules; ensure any proprietary drivers (like GPU drivers) are compatible with the new kernel version before upgrading in production environments

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $1,600. Get the upgrade done

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

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Peer-ranked notes from engineers who’ve handled CVE-2022-49458 in production — separate from our analysis above.

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