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CVE-2024-41077— null_blk: fix validation of block size

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，该漏洞源于未验证块大小是否在512到PAGE_SIZE之间，并且是2的幂，导致可能的无效参数问题。

AI Predicted 5.5 Difficulty: Easy EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1564 · Hide Artifacts

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux cedcafad8277b3a07e90bf2f68fff5c6b28a183e< 9625afe1dd4a158a14bb50f81af9e2dac634c0b1 affected
cedcafad8277b3a07e90bf2f68fff5c6b28a183e< 9b873bdaae64bddade9d8c6df23c8a31948d47d0 affected
cedcafad8277b3a07e90bf2f68fff5c6b28a183e< 2772ed2fc075eef7df3789906fc9dae01e4e132e affected
cedcafad8277b3a07e90bf2f68fff5c6b28a183e< 08f03186b96e25e3154916a2e70732557c770ea7 affected
cedcafad8277b3a07e90bf2f68fff5c6b28a183e< f92409a9da02f27d05d713bff5f865e386cef9b3 affected
cedcafad8277b3a07e90bf2f68fff5c6b28a183e< c462ecd659b5fce731f1d592285832fd6ad54053 affected
4.14 affected
< 4.14 unaffected
… +6 more rows
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I. Basic Information for CVE-2024-41077

Vulnerability Information
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Vulnerability Title
null_blk: fix validation of block size
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: null_blk: fix validation of block size Block size should be between 512 and PAGE_SIZE and be a power of 2. The current check does not validate this, so update the check. Without this patch, null_blk would Oops due to a null pointer deref when loaded with bs=1536 [1]. [axboe: remove unnecessary braces and != 0 check]
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，该漏洞源于未验证块大小是否在512到PAGE_SIZE之间，并且是2的幂，导致可能的无效参数问题。
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 cedcafad8277b3a07e90bf2f68fff5c6b28a183e ~ 9625afe1dd4a158a14bb50f81af9e2dac634c0b1 -
Linux Linux 4.14 -

II. Public POCs for CVE-2024-41077

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III. Intelligence Information for CVE-2024-41077

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Other References for CVE-2024-41077 (6)

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-2024-41077

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