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NVD / CVE Program· CNA Linux

CVE-2022-49945: hwmon: (gpio-fan) Fix array out of bounds access

Noroxi assessment

Priority: Monitor (action score 28/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.23% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 3263984c7acdcb0658155b05a724ed45a10de76d, 3ff866455e1e263a9ac1958095fd440984248e2f, 517dba798793e69b510779c3cde7224a65f3ed1d.

Low priority for now. Upgrade to Linux Linux 3263984c7acdcb0658155b05a724ed45a10de76d, 3ff866455e1e263a9ac1958095fd440984248e2f, 517dba798793e69b510779c3cde7224a65f3ed1d or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: hwmon: (gpio-fan) Fix array out of bounds access The driver does not check if the cooling state passed to gpio_fan_set_cur_state() exceeds the maximum cooling state as stored in fan_data->num_speeds. Since the cooling state is later used as an array index in set_fan_speed(), an array out of bounds access can occur. This can be exploited by setting the state of the thermal cooling device to arbitrary values, causing for example a kernel oops when unavailable memory is accessed this way. Example kernel oops: [ 807.987276] Unable to handle kernel paging request at virtual address ffffff80d0588064 [ 807.987369] Mem abort info: [ 807.987398] ESR = 0x96000005 [ 807.987428] EC = 0x25: DABT (current EL), IL = 32 bits [ 807.987477] SET = 0, FnV = 0 [ 807.987507] EA = 0, S1PTW = 0 [ 807.987536] FSC = 0x05: level 1 translation fault [ 807.987570] Data abort info: [ 807.987763] ISV = 0, ISS = 0x00000005 [ 807.987801] CM = 0, WnR = 0 [ 807.987832] swapper pgtable: 4k pages, 39-bit VAs, pgdp=0000000001165000 [ 807.987872] [ffffff80d0588064] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000 [ 807.987961] Internal error: Oops: 96000005 [#1] PREEMPT SMP [ 807.987992] Modules linked in: cmac algif_hash aes_arm64 algif_skcipher af_alg bnep hci_uart btbcm bluetooth ecdh_generic ecc 8021q garp stp llc snd_soc_hdmi_codec brcmfmac vc4 brcmutil cec drm_kms_helper snd_soc_core cfg80211 snd_compress bcm2835_codec(C) snd_pcm_dmaengine syscopyarea bcm2835_isp(C) bcm2835_v4l2(C) sysfillrect v4l2_mem2mem bcm2835_mmal_vchiq(C) raspberrypi_hwmon sysimgblt videobuf2_dma_contig videobuf2_vmalloc fb_sys_fops videobuf2_memops rfkill videobuf2_v4l2 videobuf2_common i2c_bcm2835 snd_bcm2835(C) videodev snd_pcm snd_timer snd mc vc_sm_cma(C) gpio_fan uio_pdrv_genirq uio drm fuse drm_panel_orientation_quirks backlight ip_tables x_tables ipv6 [ 807.988508] CPU: 0 PID: 1321 Comm: bash Tainted: G C 5.15.56-v8+ #1575 [ 807.988548] Hardware name: Raspberry Pi 3 Model B Rev 1.2 (DT) [ 807.988574] pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 807.988608] pc : set_fan_speed.part.5+0x34/0x80 [gpio_fan] [ 807.988654] lr : gpio_fan_set_cur_state+0x34/0x50 [gpio_fan] [ 807.988691] sp : ffffffc008cf3bd0 [ 807.988710] x29: ffffffc008cf3bd0 x28: ffffff80019edac0 x27: 0000000000000000 [ 807.988762] x26: 0000000000000000 x25: 0000000000000000 x24: ffffff800747c920 [ 807.988787] x23: 000000000000000a x22: ffffff800369f000 x21: 000000001999997c [ 807.988854] x20: ffffff800369f2e8 x19: ffffff8002ae8080 x18: 0000000000000000 [ 807.988877] x17: 0000000000000000 x16: 0000000000000000 x15: 000000559e271b70 [ 807.988938] x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 [ 807.988960] x11: 0000000000000000 x10: ffffffc008cf3c20 x9 : ffffffcfb60c741c [ 807.989018] x8 : 000000000000000a x7 : 00000000ffffffc9 x6 : 0000000000000009 [ 807.989040] x5 : 000000000000002a x4 : 0000000000000000 x3 : ffffff800369f2e8 [ 807.989062] x2 : 000000000000e780 x1 : 0000000000000001 x0 : ffffff80d0588060 [ 807.989084] Call trace: [ 807.989091] set_fan_speed.part.5+0x34/0x80 [gpio_fan] [ 807.989113] gpio_fan_set_cur_state+0x34/0x50 [gpio_fan] [ 807.989199] cur_state_store+0x84/0xd0 [ 807.989221] dev_attr_store+0x20/0x38 [ 807.989262] sysfs_kf_write+0x4c/0x60 [ 807.989282] kernfs_fop_write_iter+0x130/0x1c0 [ 807.989298] new_sync_write+0x10c/0x190 [ 807.989315] vfs_write+0x254/0x378 [ 807.989362] ksys_write+0x70/0xf8 [ 807.989379] __arm64_sys_write+0x24/0x30 [ 807.989424] invoke_syscall+0x4c/0x110 [ 807.989442] el0_svc_common.constprop.3+0xfc/0x120 [ 807.989458] do_el0_svc+0x2c/0x90 [ 807.989473] el0_svc+0x24/0x60 [ 807.989544] el0t_64_sync_handler+0x90/0xb8 [ 807.989558] el0t_64_sync+0x1a0/0x1a4 [ 807.989579] Code: b9403801 f9402800 7100003f 8b35cc00 (b9400416) [ 807.989627] ---[ end t ---truncated---

HighCVSS 7.1 · v3.1—No exploit Fix available
Published
Jun 18, 2025
Updated
Jun 17, 2026
EPSS
0.2% · 14th percentile

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

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  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel4.1 and later · before 4.9.328
  • linux linux kernel4.10 and later · before 4.14.293
  • linux linux kernel4.15 and later · before 4.19.258
  • linux linux kernel4.20 and later · before 5.4.213
  • linux linux kernel5.5 and later · before 5.10.142
  • linux linux kernel5.11 and later · before 5.15.66
  • linux linux kernel5.16 and later · before 5.19.8
  • linux linux kernel6.0

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 4.1affected
    • b5cf88e46badea6d600d8515edea23814e03444d and later · before e9f6972ab40a82bd7f6d36800792ba2e084474d8affected · git
    • b5cf88e46badea6d600d8515edea23814e03444d and later · before 3ff866455e1e263a9ac1958095fd440984248e2faffected · git
    • b5cf88e46badea6d600d8515edea23814e03444d and later · before c8ae6a18708f260ccdeef6ba53af7548457dc26caffected · git
    • b5cf88e46badea6d600d8515edea23814e03444d and later · before 7756eb1ed124753f4d64f761fc3d84290dffcb4daffected · git
    • b5cf88e46badea6d600d8515edea23814e03444d and later · before 517dba798793e69b510779c3cde7224a65f3ed1daffected · git
    • b5cf88e46badea6d600d8515edea23814e03444d and later · before 53196e0376205ed49b75bfd0475af5e0fbd20156affected · git
    • b5cf88e46badea6d600d8515edea23814e03444d and later · before 3263984c7acdcb0658155b05a724ed45a10de76daffected · git
    • b5cf88e46badea6d600d8515edea23814e03444d and later · before f233d2be38dbbb22299192292983037f01ab363caffected · git
    • before 4.1not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.0.2-16.0.2-1
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSkernel-64kbbefore 5.14.21-150400.24.170.25.14.21-150400.24.170.2
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSkernel-docsbefore 5.14.21-150400.24.170.15.14.21-150400.24.170.1
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSkernel-obs-buildbefore 5.14.21-150400.24.170.25.14.21-150400.24.170.2
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSkernel-sourcebefore 5.14.21-150400.24.170.15.14.21-150400.24.170.1
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSkernel-symsbefore 5.14.21-150400.24.170.15.14.21-150400.24.170.1
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSkernel-64kbbefore 5.14.21-150500.55.113.15.14.21-150500.55.113.1
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSkernel-docsbefore 5.14.21-150500.55.113.15.14.21-150500.55.113.1
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSkernel-obs-buildbefore 5.14.21-150500.55.113.15.14.21-150500.55.113.1
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSkernel-symsbefore 5.14.21-150500.55.113.15.14.21-150500.55.113.1
SUSE:Linux Enterprise Live Patching 15 SP3kernel-defaultbefore 5.3.18-150300.59.211.15.3.18-150300.59.211.1
SUSE:Linux Enterprise Live Patching 15 SP3kernel-livepatch-SLE15-SP3_Update_59before 1-150300.7.3.11-150300.7.3.1
SUSE:Linux Enterprise Live Patching 15 SP5kernel-livepatch-SLE15-SP5_Update_28before 1-150500.11.3.11-150500.11.3.1
SUSE:Linux Enterprise Micro 5.1kernel-rtbefore 5.3.18-150300.214.15.3.18-150300.214.1
SUSE:Linux Enterprise Micro 5.1kernel-source-rtbefore 5.3.18-150300.214.15.3.18-150300.214.1
SUSE:Linux Enterprise Micro 5.3kernel-defaultbefore 5.14.21-150400.24.170.25.14.21-150400.24.170.2
SUSE:Linux Enterprise Micro 5.3kernel-default-basebefore 5.14.21-150400.24.170.2.150400.24.86.25.14.21-150400.24.170.2.150400.24.86.2
SUSE:Linux Enterprise Micro 5.3kernel-rtbefore 5.14.21-150400.15.124.15.14.21-150400.15.124.1
SUSE:Linux Enterprise Micro 5.3kernel-source-rtbefore 5.14.21-150400.15.124.15.14.21-150400.15.124.1
SUSE:Linux Enterprise Micro 5.5kernel-defaultbefore 5.14.21-150500.55.113.15.14.21-150500.55.113.1
SUSE:Linux Enterprise Micro 5.5kernel-default-basebefore 5.14.21-150500.55.113.1.150500.6.53.15.14.21-150500.55.113.1.150500.6.53.1
SUSE:Linux Enterprise Micro 5.5kernel-rtbefore 5.14.21-150500.13.100.25.14.21-150500.13.100.2
SUSE:Linux Enterprise Micro 5.5kernel-sourcebefore 5.14.21-150500.55.113.15.14.21-150500.55.113.1
SUSE:Linux Enterprise Micro 5.5kernel-source-rtbefore 5.14.21-150500.13.100.15.14.21-150500.13.100.1

+10

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2022-49943Jun 18, 2025 · USB: gadget: Fix obscure lockdep violation for udc_mutex
    22Monitor
  • ← EarlierCVE-2022-49944Jun 18, 2025 · Revert "usb: typec: ucsi: add a common function ucsi_unregister_connectors()"
    22Monitor
  • Later →CVE-2022-49946Jun 18, 2025 · clk: bcm: rpi: Prevent out-of-bounds access
    28Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux3263984c7acdcb0658155b05a724ed45a10de76dVendor (CNA)
Linux Linux3ff866455e1e263a9ac1958095fd440984248e2fVendor (CNA)
Linux Linux517dba798793e69b510779c3cde7224a65f3ed1dVendor (CNA)
Linux Linux53196e0376205ed49b75bfd0475af5e0fbd20156Vendor (CNA)
Linux Linux7756eb1ed124753f4d64f761fc3d84290dffcb4dVendor (CNA)
Linux Linuxc8ae6a18708f260ccdeef6ba53af7548457dc26cVendor (CNA)
Linux Linuxe9f6972ab40a82bd7f6d36800792ba2e084474d8Vendor (CNA)
Linux Linuxf233d2be38dbbb22299192292983037f01ab363cVendor (CNA)
debian:linux6.0.2-1 · Debian:12Package registry (OSV)
suse:kernel-64kb5.14.21-150500.55.113.1 · SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSPackage registry (OSV)
suse:kernel-default5.14.21-150500.55.113.1 · SUSE:Linux Enterprise Micro 5.5Package registry (OSV)
suse:kernel-default-base5.14.21-150500.55.113.1.150500.6.53.1 · SUSE:Linux Enterprise Micro 5.5Package registry (OSV)
suse:kernel-docs5.14.21-150500.55.113.1 · SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSPackage registry (OSV)
suse:kernel-livepatch-SLE15-SP3_Update_591-150300.7.3.1 · SUSE:Linux Enterprise Live Patching 15 SP3Package registry (OSV)
suse:kernel-livepatch-SLE15-SP5_Update_281-150500.11.3.1 · SUSE:Linux Enterprise Live Patching 15 SP5Package registry (OSV)
suse:kernel-obs-build5.14.21-150500.55.113.1 · SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSPackage registry (OSV)
suse:kernel-preempt5.3.18-150300.59.211.1 · SUSE:Linux Enterprise Server 15 SP3-LTSSPackage registry (OSV)
suse:kernel-rt5.3.18-150300.214.1 · SUSE:Linux Enterprise Micro 5.1Package registry (OSV)
suse:kernel-source5.14.21-150500.55.113.1 · SUSE:Linux Enterprise Micro 5.5Package registry (OSV)
suse:kernel-syms5.14.21-150500.55.113.1 · SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOSPackage registry (OSV)
suse:kernel-zfcpdump5.14.21-150500.55.113.1 · SUSE:Linux Enterprise Server 15 SP5-LTSSPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-125 · Out-of-bounds Read

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records