{"id":"DEBIAN-CVE-2026-43475","details":"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] [\u003cffffffffc0656171\u003e] 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]  \u003cTASK\u003e [  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---","modified":"2026-09-01T16:06:44.023680936Z","published":"2026-05-08T15:17:00.687Z","upstream":["CVE-2026-43475"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-43475"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.170-1"}]}],"versions":["6.1.106-1","6.1.106-2","6.1.106-3","6.1.112-1","6.1.115-1","6.1.119-1","6.1.123-1","6.1.124-1","6.1.128-1","6.1.129-1","6.1.133-1","6.1.135-1","6.1.137-1","6.1.139-1","6.1.140-1","6.1.147-1","6.1.148-1","6.1.153-1","6.1.158-1","6.1.159-1","6.1.162-1","6.1.164-1","6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1","6.1.55-1~bpo11+1","6.1.64-1","6.1.66-1","6.1.67-1","6.1.69-1","6.1.69-1~bpo11+1","6.1.76-1","6.1.76-1~bpo11+1","6.1.82-1","6.1.85-1","6.1.90-1","6.1.90-1~bpo11+1","6.1.94-1","6.1.94-1~bpo11+1","6.1.98-1","6.1.99-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-43475.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.85-1"}]}],"versions":["6.12.38-1","6.12.41-1","6.12.43-1","6.12.43-1~bpo12+1","6.12.48-1","6.12.57-1","6.12.57-1~bpo12+1","6.12.63-1","6.12.63-1~bpo12+1","6.12.69-1","6.12.69-1~bpo12+1","6.12.73-1","6.12.73-1~bpo12+1","6.12.74-1","6.12.74-2","6.12.74-2~bpo12+1","6.12.85-1~bpo12+1"],"ecosystem_specific":{"urgency":"not yet 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