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CVE-2026-43314: Linux

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CVSS

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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Време до експлоатация

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: dm: remove fake timeout to avoid leak request Since commit 15f73f5b3e59 ("blk-mq: move failure injection out of blk_mq_complete_request"), drivers are responsible for calling blk_should_fake_timeout() at appropriate code paths and opportunities. However, the dm driver does not implement its own timeout handler and relies on the timeout handling of its slave devices. If an io-timeout-fail error is injected to a dm device, the request will be leaked and never completed, causing tasks to hang indefinitely. Reproduce: 1. prepare dm which has iscsi slave device 2. inject io-timeout-fail to dm echo 1 >/sys/class/block/dm-0/io-timeout-fail echo 100 >/sys/kernel/debug/fail_io_timeout/probability echo 10 >/sys/kernel/debug/fail_io_timeout/times 3. read/write dm 4. iscsiadm -m node -u Result: hang task like below [ 862.243768] INFO: task kworker/u514:2:151 blocked for more than 122 seconds. [ 862.244133] Tainted: G E 6.19.0-rc1+ #51 [ 862.244337] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 862.244718] task:kworker/u514:2 state:D stack:0 pid:151 tgid:151 ppid:2 task_flags:0x4288060 flags:0x00080000 [ 862.245024] Workqueue: iscsi_ctrl_3:1 __iscsi_unbind_session [scsi_transport_iscsi] [ 862.245264] Call Trace: [ 862.245587] <TASK> [ 862.245814] __schedule+0x810/0x15c0 [ 862.246557] schedule+0x69/0x180 [ 862.246760] blk_mq_freeze_queue_wait+0xde/0x120 [ 862.247688] elevator_change+0x16d/0x460 [ 862.247893] elevator_set_none+0x87/0xf0 [ 862.248798] blk_unregister_queue+0x12e/0x2a0 [ 862.248995] __del_gendisk+0x231/0x7e0 [ 862.250143] del_gendisk+0x12f/0x1d0 [ 862.250339] sd_remove+0x85/0x130 [sd_mod] [ 862.250650] device_release_driver_internal+0x36d/0x530 [ 862.250849] bus_remove_device+0x1dd/0x3f0 [ 862.251042] device_del+0x38a/0x930 [ 862.252095] __scsi_remove_device+0x293/0x360 [ 862.252291]

    Засегнати продукти

    • Linux Linux: e6ee8c0b767540f59e20da3ced282601db8aa502 преди ece6720de9403260088209b0b92d45e0b49ff856; e6ee8c0b767540f59e20da3ced282601db8aa502 преди 8200fca818c1e2f65bc6cb16d934ff6049302197; e6ee8c0b767540f59e20da3ced282601db8aa502 преди b307b6307f6459841312432bd4bc9519cbac97f5; e6ee8c0b767540f59e20da3ced282601db8aa502 преди 4f9e7ca933a9fbf9912a384b061a00c77332cbf0; e6ee8c0b767540f59e20da3ced282601db8aa502 преди cf2d06c9fd4b6521ea5b7f73c99c64c2c6f5e224; e6ee8c0b767540f59e20da3ced282601db8aa502 преди 6cdb21e0c9fdee484feba14fc9e72e9d07daf9f3; e6ee8c0b767540f59e20da3ced282601db8aa502 преди c8a23d4c995ef4227bd4de64cd3910637ee6162e; e6ee8c0b767540f59e20da3ced282601db8aa502 преди f3a9c95a15d2f4466acad5c68faeff79ca5e9f47
    • Linux Linux: 2.6.31; преди 2.6.31; 5.10.252 до 5.10.*; 5.15.202 до 5.15.*; 6.1.165 до 6.1.*; 6.6.128 до 6.6.*; 6.12.75 до 6.12.*; 6.18.16 до 6.18.*; 6.19.6 до 6.19.*; от 7.0 нататък

    История

    • 8 май 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-43314: Linux | freedomonline.bg