CVE-2022-50472: IB/mad: Don't call to function that might sleep while in atomic context
Noroxi assessment
Priority: Monitor (action score 22/100)
- 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: 0.36% (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.
- According to CISA the attack is automatable: targets can be found by mass scanning.
- Fixed version: Linux Linux 47e31b86edff36f2d26cbc88ce695d98ff804178, 5c20311d76cbaeb7ed2ecf9c8b8322f8fc4a7ae3, cea70a572c0cb9728d728cfebe7d5bd485e97513.
- Severity is disputed: the assigning authority (CNA) scores it 7.5, NVD 5.5.
Low priority for now. Upgrade to Linux Linux 47e31b86edff36f2d26cbc88ce695d98ff804178, 5c20311d76cbaeb7ed2ecf9c8b8322f8fc4a7ae3, cea70a572c0cb9728d728cfebe7d5bd485e97513 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: IB/mad: Don't call to function that might sleep while in atomic context Tracepoints are not allowed to sleep, as such the following splat is generated due to call to ib_query_pkey() in atomic context. WARNING: CPU: 0 PID: 1888000 at kernel/trace/ring_buffer.c:2492 rb_commit+0xc1/0x220 CPU: 0 PID: 1888000 Comm: kworker/u9:0 Kdump: loaded Tainted: G OE --------- - - 4.18.0-305.3.1.el8.x86_64 #1 Hardware name: Red Hat KVM, BIOS 1.13.0-2.module_el8.3.0+555+a55c8938 04/01/2014 Workqueue: ib-comp-unb-wq ib_cq_poll_work [ib_core] RIP: 0010:rb_commit+0xc1/0x220 RSP: 0000:ffffa8ac80f9bca0 EFLAGS: 00010202 RAX: ffff8951c7c01300 RBX: ffff8951c7c14a00 RCX: 0000000000000246 RDX: ffff8951c707c000 RSI: ffff8951c707c57c RDI: ffff8951c7c14a00 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: ffff8951c7c01300 R11: 0000000000000001 R12: 0000000000000246 R13: 0000000000000000 R14: ffffffff964c70c0 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8951fbc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f20e8f39010 CR3: 000000002ca10005 CR4: 0000000000170ef0 Call Trace: ring_buffer_unlock_commit+0x1d/0xa0 trace_buffer_unlock_commit_regs+0x3b/0x1b0 trace_event_buffer_commit+0x67/0x1d0 trace_event_raw_event_ib_mad_recv_done_handler+0x11c/0x160 [ib_core] ib_mad_recv_done+0x48b/0xc10 [ib_core] ? trace_event_raw_event_cq_poll+0x6f/0xb0 [ib_core] __ib_process_cq+0x91/0x1c0 [ib_core] ib_cq_poll_work+0x26/0x80 [ib_core] process_one_work+0x1a7/0x360 ? create_worker+0x1a0/0x1a0 worker_thread+0x30/0x390 ? create_worker+0x1a0/0x1a0 kthread+0x116/0x130 ? kthread_flush_work_fn+0x10/0x10 ret_from_fork+0x35/0x40 ---[ end trace 78ba8509d3830a16 ]---
- Published
- Oct 4, 2025
- Updated
- Oct 15, 2026
- EPSS
- 0.3% · 30th percentile
- CWE
- —
Report tools
Action score
22
Monitor
Low priority for now.
- CVSS
- 22 / 40 · 5.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.3%
CISA SSVC decision
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 5.5
- CNA · Linux
- 7.5
- 2.0 point gap
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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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.
We use this product, ask for helpAffected 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.
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- linux linux kernel5.2 and later · before 5.15.86
- linux linux kernel5.16 and later · before 6.0.16
- linux linux kernel6.1 and later · before 6.1.2
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
- 5.2affected
- 821bf1de45a1a084e2e11b1a2308777434194bfe and later · before d45e6ccb8e98d8339631f32984d345a663e74ce2affected · git
- 821bf1de45a1a084e2e11b1a2308777434194bfe and later · before 47e31b86edff36f2d26cbc88ce695d98ff804178affected · git
- 821bf1de45a1a084e2e11b1a2308777434194bfe and later · before cea70a572c0cb9728d728cfebe7d5bd485e97513affected · git
- 821bf1de45a1a084e2e11b1a2308777434194bfe and later · before fa8a2f3be78e4585996bcf4c15e4504441a4c7a0affected · git
- 821bf1de45a1a084e2e11b1a2308777434194bfe and later · before 5c20311d76cbaeb7ed2ecf9c8b8322f8fc4a7ae3affected · git
- before 5.2not affected · semver
- 5.10.258 and later · up to and including 5.10.*not affected · semver
- 5.15.86 and later · up to and including 5.15.*not affected · semver
- 6.0.16 and later · up to and including 6.0.*not affected · semver
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | linux | before 6.1.4-1 | 6.1.4-1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-64kb | before 5.14.21-150400.24.184.1 | 5.14.21-150400.24.184.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-docs | before 5.14.21-150400.24.184.1 | 5.14.21-150400.24.184.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-obs-build | before 5.14.21-150400.24.184.1 | 5.14.21-150400.24.184.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-source | before 5.14.21-150400.24.184.1 | 5.14.21-150400.24.184.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | kernel-syms | before 5.14.21-150400.24.184.1 | 5.14.21-150400.24.184.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-64kb | before 5.14.21-150500.55.127.1 | 5.14.21-150500.55.127.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-docs | before 5.14.21-150500.55.127.1 | 5.14.21-150500.55.127.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-obs-build | before 5.14.21-150500.55.127.1 | 5.14.21-150500.55.127.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS | kernel-syms | before 5.14.21-150500.55.127.1 | 5.14.21-150500.55.127.1 |
| SUSE:Linux Enterprise Live Patching 15 SP4 | kernel-livepatch-SLE15-SP4_Update_46 | before 1-150400.9.5.1 | 1-150400.9.5.1 |
| SUSE:Linux Enterprise Live Patching 15 SP5 | kernel-livepatch-SLE15-SP5_Update_32 | before 1-150500.11.3.1 | 1-150500.11.3.1 |
| SUSE:Linux Enterprise Micro 5.3 | kernel-default | before 5.14.21-150400.24.184.1 | 5.14.21-150400.24.184.1 |
| SUSE:Linux Enterprise Micro 5.3 | kernel-default-base | before 5.14.21-150400.24.184.1.150400.24.94.2 | 5.14.21-150400.24.184.1.150400.24.94.2 |
| SUSE:Linux Enterprise Micro 5.3 | kernel-rt | before 5.14.21-150400.15.136.1 | 5.14.21-150400.15.136.1 |
| SUSE:Linux Enterprise Micro 5.3 | kernel-source-rt | before 5.14.21-150400.15.136.1 | 5.14.21-150400.15.136.1 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-default | before 5.14.21-150500.55.127.1 | 5.14.21-150500.55.127.1 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-default-base | before 5.14.21-150500.55.127.1.150500.6.61.1 | 5.14.21-150500.55.127.1.150500.6.61.1 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-rt | before 5.14.21-150500.13.112.1 | 5.14.21-150500.13.112.1 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-source | before 5.14.21-150500.55.127.1 | 5.14.21-150500.55.127.1 |
| SUSE:Linux Enterprise Micro 5.5 | kernel-source-rt | before 5.14.21-150500.13.112.1 | 5.14.21-150500.13.112.1 |
| SUSE:Linux Enterprise Server 15 SP4-LTSS | kernel-zfcpdump | before 5.14.21-150400.24.184.1 | 5.14.21-150400.24.184.1 |
| SUSE:Linux Enterprise Server 15 SP5-LTSS | kernel-zfcpdump | before 5.14.21-150500.55.127.1 | 5.14.21-150500.55.127.1 |
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV90Now
- 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 KEV89Now
- CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV85Now
Published before and after this one in the same product
- ← EarlierCVE-2023-53616Oct 4, 2025 · jfs: fix invalid free of JFS_IP(ipimap)->i_imap in diUnmount31Monitor
- ← EarlierCVE-2022-50470Oct 4, 2025 · xhci: Remove device endpoints from bandwidth list when freeing the device31Monitor
- Later →CVE-2022-50473Oct 4, 2025 · cpufreq: Init completion before kobject_init_and_add()22Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Linux Linux | 47e31b86edff36f2d26cbc88ce695d98ff804178 | Vendor (CNA) |
| Linux Linux | 5c20311d76cbaeb7ed2ecf9c8b8322f8fc4a7ae3 | Vendor (CNA) |
| Linux Linux | cea70a572c0cb9728d728cfebe7d5bd485e97513 | Vendor (CNA) |
| Linux Linux | d45e6ccb8e98d8339631f32984d345a663e74ce2 | Vendor (CNA) |
| Linux Linux | fa8a2f3be78e4585996bcf4c15e4504441a4c7a0 | Vendor (CNA) |
| debian:linux | 6.1.4-1 · Debian:12 | Package registry (OSV) |
| suse:kernel-64kb | 5.14.21-150400.24.184.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | Package registry (OSV) |
| suse:kernel-default | 5.14.21-150400.24.184.1 · SUSE:Linux Enterprise Micro 5.3 | Package registry (OSV) |
| suse:kernel-default-base | 5.14.21-150400.24.184.1.150400.24.94.2 · SUSE:Linux Enterprise Micro 5.3 | Package registry (OSV) |
| suse:kernel-docs | 5.14.21-150400.24.184.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP4_Update_46 | 1-150400.9.5.1 · SUSE:Linux Enterprise Live Patching 15 SP4 | Package registry (OSV) |
| suse:kernel-livepatch-SLE15-SP5_Update_32 | 1-150500.11.3.1 · SUSE:Linux Enterprise Live Patching 15 SP5 | Package registry (OSV) |
| suse:kernel-obs-build | 5.14.21-150400.24.184.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | Package registry (OSV) |
| suse:kernel-rt | 5.14.21-150400.15.136.1 · SUSE:Linux Enterprise Micro 5.3 | Package registry (OSV) |
| suse:kernel-source | 5.14.21-150400.24.184.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | Package registry (OSV) |
| suse:kernel-source-rt | 5.14.21-150400.15.136.1 · SUSE:Linux Enterprise Micro 5.3 | Package registry (OSV) |
| suse:kernel-syms | 5.14.21-150400.24.184.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | Package registry (OSV) |
| suse:kernel-zfcpdump | 5.14.21-150400.24.184.1 · SUSE:Linux Enterprise Server 15 SP4-LTSS | Package 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.
No history yet (it accumulates with the daily EPSS job).
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 researchersFinders, 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
- none
- 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
- None
- Integrity impact
- None
- Availability impact
- High
Weakness class (CWE)
—
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- SSVC exploitation— → none
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (4 more)Show less
Vendor advisories and official records. Exploit/PoC links are deliberately left out.