CVE-2024-26627— scsi: core: Move scsi_host_busy() out of host lock for waking up EH handler
Possible ATT&CK Techniques 1AI
T1499 · Endpoint Denial of ServiceAffected Version Matrix 14
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 6eb045e092efefafc6687409a6fa6d1dabf0fb69< f5944853f7a961fedc1227dc8f60393f8936d37c | affected |
6eb045e092efefafc6687409a6fa6d1dabf0fb69< d37c1c81419fdef66ebd0747cf76fb8b7d979059 | affected | ||
6eb045e092efefafc6687409a6fa6d1dabf0fb69< db6338f45971b4285ea368432a84033690eaf53c | affected | ||
6eb045e092efefafc6687409a6fa6d1dabf0fb69< 65ead8468c21c2676d4d06f50b46beffdea69df1 | affected | ||
6eb045e092efefafc6687409a6fa6d1dabf0fb69< 07e3ca0f17f579491b5f54e9ed05173d6c1d6fcb | affected | ||
6eb045e092efefafc6687409a6fa6d1dabf0fb69< 4373534a9850627a2695317944898eb1283a2db0 | affected | ||
5.5 | affected | ||
< 5.5 | unaffected | ||
| … +6 more rows | |||
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I. Basic Information for CVE-2024-26627
Vulnerability Information
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Vulnerability Title
scsi: core: Move scsi_host_busy() out of host lock for waking up EH handler
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: scsi: core: Move scsi_host_busy() out of host lock for waking up EH handler Inside scsi_eh_wakeup(), scsi_host_busy() is called & checked with host lock every time for deciding if error handler kthread needs to be waken up. This can be too heavy in case of recovery, such as: - N hardware queues - queue depth is M for each hardware queue - each scsi_host_busy() iterates over (N * M) tag/requests If recovery is triggered in case that all requests are in-flight, each scsi_eh_wakeup() is strictly serialized, when scsi_eh_wakeup() is called for the last in-flight request, scsi_host_busy() has been run for (N * M - 1) times, and request has been iterated for (N*M - 1) * (N * M) times. If both N and M are big enough, hard lockup can be triggered on acquiring host lock, and it is observed on mpi3mr(128 hw queues, queue depth 8169). Fix the issue by calling scsi_host_busy() outside the host lock. We don't need the host lock for getting busy count because host the lock never covers that. [mkp: Drop unnecessary 'busy' variables pointed out by Bart]
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于主机检查会唤醒错误处理程序。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2024-26627
| # | POC Description | Source Link | Shenlong Link |
|---|
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Mailing List Discussions for CVE-2024-26627 (1)
Other References for CVE-2024-26627 (6)
Same Patch Batch · Linux · 2024-03-06 · 27 CVEs total
| CVE-2024-26625 | 7.8 HIGH | llc: call sock_orphan() at release time |
| CVE-2023-52586 | 7.8 HIGH | drm/msm/dpu: Add mutex lock in control vblank irq |
| CVE-2024-26623 | 7.8 HIGH | pds_core: Prevent race issues involving the adminq |
| CVE-2023-52590 | 7.8 HIGH | ocfs2: Avoid touching renamed directory if parent does not change |
| CVE-2023-52591 | 7.8 HIGH | reiserfs: Avoid touching renamed directory if parent does not change |
| CVE-2023-52606 | 7.8 HIGH | powerpc/lib: Validate size for vector operations |
| CVE-2023-52604 | 7.8 HIGH | FS:JFS:UBSAN:array-index-out-of-bounds in dbAdjTree |
| CVE-2023-52603 | 7.8 HIGH | UBSAN: array-index-out-of-bounds in dtSplitRoot |
| CVE-2023-52602 | 7.8 HIGH | jfs: fix slab-out-of-bounds Read in dtSearch |
| CVE-2023-52601 | 7.8 HIGH | jfs: fix array-index-out-of-bounds in dbAdjTree |
| CVE-2023-52600 | 7.8 HIGH | jfs: fix uaf in jfs_evict_inode |
| CVE-2023-52599 | 7.8 HIGH | jfs: fix array-index-out-of-bounds in diNewExt |
| CVE-2024-26626 | 7.5 HIGH | ipmr: fix kernel panic when forwarding mcast packets |
| CVE-2023-52588 | 7.3 HIGH | f2fs: fix to tag gcing flag on page during block migration |
| CVE-2023-52597 | KVM: s390: fix setting of fpc register | |
| CVE-2023-52607 | powerpc/mm: Fix null-pointer dereference in pgtable_cache_add | |
| CVE-2023-52598 | s390/ptrace: handle setting of fpc register correctly | |
| CVE-2023-52583 | ceph: fix deadlock or deadcode of misusing dget() | |
| CVE-2023-52596 | sysctl: Fix out of bounds access for empty sysctl registers | |
| CVE-2023-52595 | wifi: rt2x00: restart beacon queue when hardware reset |
Showing top 20 of 27 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-68480
x86/bugs: Make Safe-RET robust against interrupt injection - CVE-2026-64604
KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is - CVE-2026-64602
iio: adc: spear: Initialize completion before requesting IRQ - CVE-2026-64603
platform/x86: intel-hid: Protect ACPI notify handler against - CVE-2026-64601
ALSA: us144mkii: capture_urb_complete: redundant usb_anchor_
Same vendor: Linux
- CVE-2026-68480
x86/bugs: Make Safe-RET robust against interrupt injection - CVE-2026-64604
KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is - CVE-2026-64602
iio: adc: spear: Initialize completion before requesting IRQ - CVE-2026-64603
platform/x86: intel-hid: Protect ACPI notify handler against - CVE-2026-64601
ALSA: us144mkii: capture_urb_complete: redundant usb_anchor_
V. Comments for CVE-2024-26627
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