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CVE-2024-41082— nvme-fabrics: use reserved tag for reg read/write command

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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，该漏洞源于在某些情况下，如果nvme命令同时发出太多命令，可能会耗尽admin_q的所有标签。如果在这些命令完成之前发生重置（nvme重置或IO超时），重新连接例程可能因标签不足而无法更新nvme寄存器，导致内核永久挂起。

AI Predicted 5.9 Difficulty: Moderate EPSS 0.23% · P12

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux e7832cb48a654cd12b2bc9181b2f0ad49d526ac6< cc91c461cf3902993364ea85d8814ba7786c95b1 affected
e7832cb48a654cd12b2bc9181b2f0ad49d526ac6< 165da9c67a26f08c9b956c15d701da7690f45bcb affected
e7832cb48a654cd12b2bc9181b2f0ad49d526ac6< 7dc3bfcb4c9cc58970fff6aaa48172cb224d85aa affected
5.4 affected
< 5.4 unaffected
6.6.158≤ 6.6.* unaffected
6.9.11≤ 6.9.* unaffected
6.10≤ * unaffected
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I. Basic Information for CVE-2024-41082

Vulnerability Information
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Vulnerability Title
nvme-fabrics: use reserved tag for reg read/write command
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: nvme-fabrics: use reserved tag for reg read/write command In some scenarios, if too many commands are issued by nvme command in the same time by user tasks, this may exhaust all tags of admin_q. If a reset (nvme reset or IO timeout) occurs before these commands finish, reconnect routine may fail to update nvme regs due to insufficient tags, which will cause kernel hang forever. In order to workaround this issue, maybe we can let reg_read32()/reg_read64()/reg_write32() use reserved tags. This maybe safe for nvmf: 1. For the disable ctrl path, we will not issue connect command 2. For the enable ctrl / fw activate path, since connect and reg_xx() are called serially. So the reserved tags may still be enough while reg_xx() use reserved tags.
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，该漏洞源于在某些情况下，如果nvme命令同时发出太多命令，可能会耗尽admin_q的所有标签。如果在这些命令完成之前发生重置（nvme重置或IO超时），重新连接例程可能因标签不足而无法更新nvme寄存器，导致内核永久挂起。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux e7832cb48a654cd12b2bc9181b2f0ad49d526ac6 ~ cc91c461cf3902993364ea85d8814ba7786c95b1 -
Linux Linux 5.4 -

II. Public POCs for CVE-2024-41082

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III. Intelligence Information for CVE-2024-41082

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Patches & Fixes for CVE-2024-41082 (1)

Other References for CVE-2024-41082 (2)

Same Patch Batch · Linux · 2024-07-29 · 121 CVEs total

CVE-2024-41081 9.8 CRITICAL ila: block BH in ila_output()
CVE-2024-41073 9.8 CRITICAL nvme: avoid double free special payload
CVE-2024-41040 9.8 CRITICAL net/sched: Fix UAF when resolving a clash
CVE-2024-41091 8.8 HIGH tun: add missing verification for short frame
CVE-2024-42083 8.8 HIGH ionic: fix kernel panic due to multi-buffer handling
CVE-2024-41062 8.8 HIGH bluetooth/l2cap: sync sock recv cb and release
CVE-2024-41046 8.8 HIGH net: ethernet: lantiq_etop: fix double free in detach
CVE-2024-41090 8.8 HIGH tap: add missing verification for short frame
CVE-2024-41057 7.8 HIGH cachefiles: fix slab-use-after-free in cachefiles_withdraw_cookie()
CVE-2024-42072 7.8 HIGH bpf: Fix may_goto with negative offset.
CVE-2024-42075 7.8 HIGH bpf: Fix remap of arena.
CVE-2024-41064 7.8 HIGH powerpc/eeh: avoid possible crash when edev->pdev changes
CVE-2024-41015 7.8 HIGH ocfs2: add bounds checking to ocfs2_check_dir_entry()
CVE-2024-41059 7.8 HIGH hfsplus: fix uninit-value in copy_name
CVE-2024-41049 7.8 HIGH filelock: fix potential use-after-free in posix_lock_inode
CVE-2024-41045 7.8 HIGH bpf: Defer work in bpf_timer_cancel_and_free
CVE-2024-41017 7.8 HIGH jfs: don't walk off the end of ealist
CVE-2024-41060 7.8 HIGH drm/radeon: check bo_va->bo is non-NULL before using it
CVE-2024-41051 7.8 HIGH cachefiles: wait for ondemand_object_worker to finish when dropping object
CVE-2024-41069 7.8 HIGH ASoC: topology: Fix references to freed memory

Showing top 20 of 121 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-41082

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