CVE-2026-43475: linux

CVSS: 5.5v3.1MediumAnalyzed

AliasesUBUNTU-CVE-2026-43475DEBIAN-CVE-2026-43475

Published 08-05-2026Last modified 11-05-2026

Vulnerability summary

CVE-2026-43475 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5.1% of scored vulnerabilities.

Overall risk

22/100

0100

Low · default modelHow is this calculated?

CVSS score

5.5/10

010

Medium · v3.1 (NVD)

EPSS score

0.16%

0%100%

Low · +0.05 pp in 30 days

KEVNot listedIn no KEV catalog

RansomwareNone recordedNo known use recorded

Public exploits0No public exploits recorded

Timeline

08-05-2026
PublishedVulnerability first disclosed.
11-05-2026
Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT This resolves the follow splat and lock-up when running with PREEMPT_RT enabled on Hyper-V: [ 415.140818] BUG: scheduling while atomic: stress-ng-iomix/1048/0x00000002 [ 415.140822] INFO: lockdep is turned off. [ 415.140823] Modules linked in: intel_rapl_msr intel_rapl_common intel_uncore_frequency_common intel_pmc_core pmt_telemetry pmt_discovery pmt_class intel_pmc_ssram_telemetry intel_vsec ghash_clmulni_intel aesni_intel rapl binfmt_misc nls_ascii nls_cp437 vfat fat snd_pcm hyperv_drm snd_timer drm_client_lib drm_shmem_helper snd sg soundcore drm_kms_helper pcspkr hv_balloon hv_utils evdev joydev drm configfs efi_pstore nfnetlink vsock_loopback vmw_vsock_virtio_transport_common hv_sock vmw_vsock_vmci_transport vsock vmw_vmci efivarfs autofs4 ext4 crc16 mbcache jbd2 sr_mod sd_mod cdrom hv_storvsc serio_raw hid_generic scsi_transport_fc hid_hyperv scsi_mod hid hv_netvsc hyperv_keyboard scsi_common [ 415.140846] Preemption disabled at: [ 415.140847] [<ffffffffc0656171>] storvsc_queuecommand+0x2e1/0xbe0 [hv_storvsc] [ 415.140854] CPU: 8 UID: 0 PID: 1048 Comm: stress-ng-iomix Not tainted 6.19.0-rc7 #30 PREEMPT_{RT,(full)} [ 415.140856] Hardware name: Microsoft Corporation Virtual Machine/Virtual Machine, BIOS Hyper-V UEFI Release v4.1 09/04/2024 [ 415.140857] Call Trace: [ 415.140861] <TASK> [ 415.140861] ? storvsc_queuecommand+0x2e1/0xbe0 [hv_storvsc] [ 415.140863] dump_stack_lvl+0x91/0xb0 [ 415.140870] __schedule_bug+0x9c/0xc0 [ 415.140875] __schedule+0xdf6/0x1300 [ 415.140877] ? rtlock_slowlock_locked+0x56c/0x1980 [ 415.140879] ? rcu_is_watching+0x12/0x60 [ 415.140883] schedule_rtlock+0x21/0x40 [ 415.140885] rtlock_slowlock_locked+0x502/0x1980 [ 415.140891] rt_spin_lock+0x89/0x1e0 [ 415.140893] hv_ringbuffer_write+0x87/0x2a0 [ 415.140899] vmbus_sendpacket_mpb_desc+0xb6/0xe0 [ 415.140900] ? rcu_is_watching+0x12/0x60 [ 415.140902] storvsc_queuecommand+0x669/0xbe0 [hv_storvsc] [ 415.140904] ? HARDIRQ_verbose+0x10/0x10 [ 415.140908] ? __rq_qos_issue+0x28/0x40 [ 415.140911] scsi_queue_rq+0x760/0xd80 [scsi_mod] [ 415.140926] __blk_mq_issue_directly+0x4a/0xc0 [ 415.140928] blk_mq_issue_direct+0x87/0x2b0 [ 415.140931] blk_mq_dispatch_queue_requests+0x120/0x440 [ 415.140933] blk_mq_flush_plug_list+0x7a/0x1a0 [ 415.140935] __blk_flush_plug+0xf4/0x150 [ 415.140940] __submit_bio+0x2b2/0x5c0 [ 415.140944] ? submit_bio_noacct_nocheck+0x272/0x360 [ 415.140946] submit_bio_noacct_nocheck+0x272/0x360 [ 415.140951] ext4_read_bh_lock+0x3e/0x60 [ext4] [ 415.140995] ext4_block_write_begin+0x396/0x650 [ext4] [ 415.141018] ? __pfx_ext4_da_get_block_prep+0x10/0x10 [ext4] [ 415.141038] ext4_da_write_begin+0x1c4/0x350 [ext4] [ 415.141060] generic_perform_write+0x14e/0x2c0 [ 415.141065] ext4_buffered_write_iter+0x6b/0x120 [ext4] [ 415.141083] vfs_write+0x2ca/0x570 [ 415.141087] ksys_write+0x76/0xf0 [ 415.141089] do_syscall_64+0x99/0x1490 [ 415.141093] ? rcu_is_watching+0x12/0x60 [ 415.141095] ? finish_task_switch.isra.0+0xdf/0x3d0 [ 415.141097] ? rcu_is_watching+0x12/0x60 [ 415.141098] ? lock_release+0x1f0/0x2a0 [ 415.141100] ? rcu_is_watching+0x12/0x60 [ 415.141101] ? finish_task_switch.isra.0+0xe4/0x3d0 [ 415.141103] ? rcu_is_watching+0x12/0x60 [ 415.141104] ? __schedule+0xb34/0x1300 [ 415.141106] ? hrtimer_try_to_cancel+0x1d/0x170 [ 415.141109] ? do_nanosleep+0x8b/0x160 [ 415.141111] ? hrtimer_nanosleep+0x89/0x100 [ 415.141114] ? __pfx_hrtimer_wakeup+0x10/0x10 [ 415.141116] ? xfd_validate_state+0x26/0x90 [ 415.141118] ? rcu_is_watching+0x12/0x60 [ 415.141120] ? do_syscall_64+0x1e0/0x1490 [ 415.141121] ? do_syscall_64+0x1e0/0x1490 [ 415.141123] ? rcu_is_watching+0x12/0x60 [ 415.141124] ? do_syscall_64+0x1e0/0x1490 [ 415.141125] ? do_syscall_64+0x1e0/0x1490 [ 415.141127] ? irqentry_exit+0x140/0 ---truncated---

CVSS metrics

3 scores · 3 sources · 1 version

v3.15.5

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

Versus all other CVEs

30-day change

+0.05 pp

From 0.11% on 21-09-2026

21-09-202621-10-2026

EPSS score

0.16%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu157 products

linuxAll versions (No fix recorded) | < 5.15.0-186.196 | < 6.8.0-136.136
linux-allwinner-5.19All versions (No fix recorded)
linux-awsAll versions (No fix recorded) | < 5.15.0-1112.119 | < 6.8.0-1061.64
linux-aws-5.0All versions (No fix recorded)
linux-aws-5.11All versions (No fix recorded)

linux-aws-5.13All versions (No fix recorded)
linux-aws-5.15< 5.15.0-1112.119~20.04.1
linux-aws-5.19All versions (No fix recorded)
linux-aws-5.3All versions (No fix recorded)
linux-aws-5.4All versions (No fix recorded)
linux-aws-5.8All versions (No fix recorded)
linux-aws-6.14All versions (No fix recorded)
linux-aws-6.17All versions (No fix recorded)
linux-aws-6.2All versions (No fix recorded)
linux-aws-6.5All versions (No fix recorded)
linux-aws-6.8< 6.8.0-1061.64~22.04.1
linux-aws-fipsAll versions (No fix recorded) | < 5.15.0-1112.119+fips1 | < 6.8.0-1061.64+fips1
linux-aws-hweAll versions (No fix recorded)
linux-azureAll versions (No fix recorded) | < 5.15.0-1117.126 | < 6.8.0-1063.71
linux-azure-4.15All versions (No fix recorded)
linux-azure-5.11All versions (No fix recorded)
linux-azure-5.13All versions (No fix recorded)
linux-azure-5.15< 5.15.0-1117.126~20.04.1
linux-azure-5.19All versions (No fix recorded)
linux-azure-5.3All versions (No fix recorded)
linux-azure-5.4All versions (No fix recorded)
linux-azure-5.8All versions (No fix recorded)
linux-azure-6.11All versions (No fix recorded)
linux-azure-6.14All versions (No fix recorded)
linux-azure-6.17All versions (No fix recorded)
linux-azure-6.2All versions (No fix recorded)
linux-azure-6.5All versions (No fix recorded)
linux-azure-6.8< 6.8.0-1063.71~22.04.1
linux-azure-edgeAll versions (No fix recorded)
linux-azure-fdeAll versions (No fix recorded) | < 5.15.0-1117.126 | < 6.8.0-1062.69
linux-azure-fde-5.15< 5.15.0-1117.126~20.04.2
linux-azure-fde-5.19All versions (No fix recorded)
linux-azure-fde-6.14All versions (No fix recorded)
linux-azure-fde-6.2All versions (No fix recorded)
linux-azure-fde-6.8< 6.8.0-1062.69~22.04.1
linux-azure-fipsAll versions (No fix recorded) | < 5.15.0-1117.126+fips1 | < 6.8.0-1063.71+fips2
linux-azure-nvidiaAll versions (No fix recorded)
linux-azure-nvidia-6.14All versions (No fix recorded)
linux-bluefieldAll versions (No fix recorded) | < 5.15.0-1096.98 | < 6.8.0-1028.33
linux-fipsAll versions (No fix recorded) | < 5.15.0-186.196+fips1 | < 6.8.0-136.136+fips2
linux-gcpAll versions (No fix recorded) | < 5.15.0-1112.122 | < 6.8.0-1064.72
linux-gcp-4.15All versions (No fix recorded)
linux-gcp-5.11All versions (No fix recorded)
linux-gcp-5.13All versions (No fix recorded)
linux-gcp-5.15< 5.15.0-1112.122~20.04.1
linux-gcp-5.19All versions (No fix recorded)
linux-gcp-5.3All versions (No fix recorded)
linux-gcp-5.4All versions (No fix recorded)
linux-gcp-5.8All versions (No fix recorded)
linux-gcp-6.11All versions (No fix recorded)
linux-gcp-6.14All versions (No fix recorded)
linux-gcp-6.17All versions (No fix recorded)
linux-gcp-6.2All versions (No fix recorded)
linux-gcp-6.5All versions (No fix recorded)
linux-gcp-6.8< 6.8.0-1064.72~22.04.1
linux-gcp-fipsAll versions (No fix recorded) | < 5.15.0-1112.122+fips1 | < 6.8.0-1064.72+fips1
linux-gkeAll versions (No fix recorded) | < 5.15.0-1108.114 | < 6.8.0-1059.67
linux-gke-4.15All versions (No fix recorded)
linux-gke-5.15All versions (No fix recorded)
linux-gke-5.4All versions (No fix recorded)
linux-gkeopAll versions (No fix recorded) | < 5.15.0-1095.103 | < 6.8.0-1046.50
linux-gkeop-5.15All versions (No fix recorded)
linux-gkeop-5.4All versions (No fix recorded)
linux-hweAll versions (No fix recorded)
linux-hwe-5.11All versions (No fix recorded)
linux-hwe-5.13All versions (No fix recorded)
linux-hwe-5.15< 5.15.0-186.196~20.04.1
linux-hwe-5.19All versions (No fix recorded)
linux-hwe-5.4All versions (No fix recorded)
linux-hwe-5.8All versions (No fix recorded)
linux-hwe-6.11All versions (No fix recorded)
linux-hwe-6.14All versions (No fix recorded)
linux-hwe-6.17All versions (No fix recorded)
linux-hwe-6.2All versions (No fix recorded)
linux-hwe-6.5All versions (No fix recorded)
linux-hwe-6.8< 6.8.0-136.136~22.04.1
linux-hwe-edgeAll versions (No fix recorded)
linux-ibmAll versions (No fix recorded) | < 5.15.0-1106.110 | < 6.8.0-1061.62
linux-ibm-5.15< 5.15.0-1106.110~20.04.1
linux-ibm-5.4All versions (No fix recorded)
linux-ibm-6.8< 6.8.0-1061.62~22.04.1
linux-intel-5.13All versions (No fix recorded)
linux-intel-iot-realtimeAll versions (No fix recorded) | < 5.15.0-1104.106
linux-intel-iotg< 5.15.0-1107.113
linux-intel-iotg-5.15< 5.15.0-1107.113~20.04.1
linux-iotAll versions (No fix recorded)
linux-kvmAll versions (No fix recorded) | < 5.15.0-1104.109
linux-lowlatency< 5.15.0-184.194 | < 6.8.0-136.136.2
linux-lowlatency-hwe-5.15< 5.15.0-184.194~20.04.1
linux-lowlatency-hwe-5.19All versions (No fix recorded)
linux-lowlatency-hwe-6.11All versions (No fix recorded)
linux-lowlatency-hwe-6.2All versions (No fix recorded)
linux-lowlatency-hwe-6.5All versions (No fix recorded)
linux-lowlatency-hwe-6.8< 6.8.0-136.136.2~22.04.1
linux-lts-xenialAll versions (No fix recorded)
linux-nvidia< 5.15.0-1107.108 | < 6.8.0-1059.62
linux-nvidia-6.11All versions (No fix recorded)
linux-nvidia-6.17All versions (No fix recorded)
linux-nvidia-6.2All versions (No fix recorded)
linux-nvidia-6.5All versions (No fix recorded)
linux-nvidia-6.8< 6.8.0-1059.62~22.04.1
linux-nvidia-lowlatency< 6.8.0-1059.62.1
linux-nvidia-tegra< 5.15.0-1064.66 | < 6.8.0-1030.31
linux-nvidia-tegra-5.15< 5.15.0-1064.66~20.04.1
linux-nvidia-tegra-igx< 5.15.0-1053.53
linux-oemAll versions (No fix recorded)
linux-oem-5.10All versions (No fix recorded)
linux-oem-5.13All versions (No fix recorded)
linux-oem-5.14All versions (No fix recorded)
linux-oem-5.17All versions (No fix recorded)
linux-oem-5.6All versions (No fix recorded)
linux-oem-6.0All versions (No fix recorded)
linux-oem-6.1All versions (No fix recorded)
linux-oem-6.11All versions (No fix recorded)
linux-oem-6.14All versions (No fix recorded)
linux-oem-6.17All versions (No fix recorded)
linux-oem-6.5All versions (No fix recorded)
linux-oem-6.8All versions (No fix recorded)
linux-oracleAll versions (No fix recorded) | < 5.15.0-1109.115 | < 6.8.0-1058.61
linux-oracle-5.0All versions (No fix recorded)
linux-oracle-5.11All versions (No fix recorded)
linux-oracle-5.13All versions (No fix recorded)
linux-oracle-5.15< 5.15.0-1109.115~20.04.1
linux-oracle-5.3All versions (No fix recorded)
linux-oracle-5.4All versions (No fix recorded)
linux-oracle-5.8All versions (No fix recorded)
linux-oracle-6.14All versions (No fix recorded)
linux-oracle-6.17All versions (No fix recorded)
linux-oracle-6.5All versions (No fix recorded)
linux-oracle-6.8< 6.8.0-1058.61~22.04.1
linux-raspiAll versions (No fix recorded) | < 5.15.0-1106.109 | < 6.8.0-1061.65
linux-raspi-5.4All versions (No fix recorded)
linux-raspi-realtimeAll versions (No fix recorded) | < 6.8.0-2050.52
linux-raspi2All versions (No fix recorded)
linux-realtimeAll versions (No fix recorded) | < 5.15.0-1111.120 | < 6.8.1-1056.57
linux-realtime-6.14All versions (No fix recorded)
linux-realtime-6.17All versions (No fix recorded)
linux-realtime-6.8< 6.8.1-1056.57~22.04.2
linux-riscvAll versions (No fix recorded)
linux-riscv-5.11All versions (No fix recorded)
linux-riscv-5.15< 5.15.0-1106.110~20.04.1
linux-riscv-5.19All versions (No fix recorded)
linux-riscv-5.8All versions (No fix recorded)
linux-riscv-6.14All versions (No fix recorded)
linux-riscv-6.17All versions (No fix recorded)
linux-riscv-6.5All versions (No fix recorded)
linux-riscv-6.8< 6.8.0-136.136~22.04.3
linux-starfive-5.19All versions (No fix recorded)
linux-starfive-6.2All versions (No fix recorded)
linux-starfive-6.5All versions (No fix recorded)
linux-xilinx< 6.8.0-1033.34
linux-xilinx-zynqmpAll versions (No fix recorded) | < 5.15.0-1075.79

Show all 157

Linux2 products

linux≥ d86adf482b843b3a58a9ec3b7c1ccdbf7c705db1, < cf00cb15f2515e38d3b7571bf6800b7c6ce70a84 | ≥ d86adf482b843b3a58a9ec3b7c1ccdbf7c705db1, < b82462af23e45e066dd56d2736ea70159a6ad647 | ≥ d86adf482b843b3a58a9ec3b7c1ccdbf7c705db1, < 91ab59f76d0866079420ebff1c7959fcd87a242e | ≥ d86adf482b843b3a58a9ec3b7c1ccdbf7c705db1, < e7919a293f9b6101e38bde0d8613daea6c9955df | ≥ d86adf482b843b3a58a9ec3b7c1ccdbf7c705db1, < f8db760f4f52a73a022a3d6c84c488ead952a9b5 | ≥ d86adf482b843b3a58a9ec3b7c1ccdbf7c705db1, < c2e73d8acd056347a70047e6be7cd98e0e811dfa | ≥ d86adf482b843b3a58a9ec3b7c1ccdbf7c705db1, < c7984d196476adcbd51c0ce386d7e90277198d57 | ≥ d86adf482b843b3a58a9ec3b7c1ccdbf7c705db1, < 57297736c08233987e5d29ce6584c6ca2a831b12 | 4.11
linux_kernel≥ 4.11, < 5.10.253 | ≥ 5.11, < 5.15.203 | ≥ 5.16, < 6.1.167 | ≥ 6.2, < 6.6.130 | ≥ 6.7, < 6.12.78 | ≥ 6.13, < 6.18.19 | ≥ 6.19, < 6.19.9 | 7.0:rc1

Debian1 product

linux< 6.1.170-1 | < 6.12.85-1 | < 6.19.10-1

3 vendors · 160 products

References

39 links

git.kernel.org/stable/c/cf00cb15f2515e38d3b7571bf6800b7c6ce70a84REPORTPatch
git.kernel.org/stable/c/b82462af23e45e066dd56d2736ea70159a6ad647REPORTPatch
git.kernel.org/stable/c/91ab59f76d0866079420ebff1c7959fcd87a242eREPORTPatch
git.kernel.org/stable/c/e7919a293f9b6101e38bde0d8613daea6c9955dfREPORTPatch
git.kernel.org/stable/c/f8db760f4f52a73a022a3d6c84c488ead952a9b5REPORTPatch
git.kernel.org/stable/c/c2e73d8acd056347a70047e6be7cd98e0e811dfaREPORTPatch
git.kernel.org/stable/c/c7984d196476adcbd51c0ce386d7e90277198d57REPORTPatch
git.kernel.org/stable/c/57297736c08233987e5d29ce6584c6ca2a831b12REPORTPatch
ubuntu.com/security/CVE-2026-43475REPORT
www.cve.org/CVERecord?id=CVE-2026-43475REPORT

Show all 39 references

git.kernel.org/linus/57297736c08233987e5d29ce6584c6ca2a831b12REPORT
ubuntu.com/security/notices/USN-8567-1Advisory
ubuntu.com/security/notices/USN-8574-1Advisory
ubuntu.com/security/notices/USN-8575-1Advisory
ubuntu.com/security/notices/USN-8576-1Advisory
ubuntu.com/security/notices/USN-8574-2Advisory
ubuntu.com/security/notices/USN-8595-1Advisory
ubuntu.com/security/notices/USN-8596-1Advisory
ubuntu.com/security/notices/USN-8575-2Advisory
ubuntu.com/security/notices/USN-8576-2Advisory
ubuntu.com/security/notices/USN-8597-1Advisory
ubuntu.com/security/notices/USN-8595-2Advisory
ubuntu.com/security/notices/USN-8606-1Advisory
ubuntu.com/security/notices/USN-8607-1Advisory
ubuntu.com/security/notices/USN-8608-1Advisory
ubuntu.com/security/notices/USN-8609-1Advisory
ubuntu.com/security/notices/USN-8575-3Advisory
ubuntu.com/security/notices/USN-8610-1Advisory
ubuntu.com/security/notices/USN-8574-3Advisory
ubuntu.com/security/notices/USN-8595-3Advisory
ubuntu.com/security/notices/USN-8619-1Advisory
ubuntu.com/security/notices/USN-8620-1Advisory
ubuntu.com/security/notices/USN-8620-2Advisory
ubuntu.com/security/notices/USN-8620-3Advisory
ubuntu.com/security/notices/USN-8620-4Advisory
ubuntu.com/security/notices/USN-8665-1Advisory
ubuntu.com/security/notices/USN-8668-1Advisory
ubuntu.com/security/notices/USN-8668-2Advisory
security-tracker.debian.org/tracker/CVE-2026-43475Advisory

Vulnerability summary

Advisory lineage

Timeline

Description

CVSS metrics

EPSS trend

Known exploited

Public exploits

Weaknesses

Affected systems

References

Related vulnerabilities