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CVE-2024-26590— erofs: fix inconsistent per-file compression format

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，该漏洞源于每个文件压缩格式不一致。

AI Predicted 6.5 Difficulty: Moderate EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux 8f89926290c4b3d31748d5089b27952243be0693< 47467e04816cb297905c0f09bc2d11ef865942d9 affected
8f89926290c4b3d31748d5089b27952243be0693< 823ba1d2106019ddf195287ba53057aee33cf724 affected
8f89926290c4b3d31748d5089b27952243be0693< eed24b816e50c6cd18cbee0ff0d7218c8fced199 affected
8f89926290c4b3d31748d5089b27952243be0693< 118a8cf504d7dfa519562d000f423ee3ca75d2c4 affected
5.16 affected
< 5.16 unaffected
6.1.80≤ 6.1.* unaffected
6.6.14≤ 6.6.* unaffected
… +2 more rows
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I. Basic Information for CVE-2024-26590

Vulnerability Information
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Vulnerability Title
erofs: fix inconsistent per-file compression format
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: erofs: fix inconsistent per-file compression format EROFS can select compression algorithms on a per-file basis, and each per-file compression algorithm needs to be marked in the on-disk superblock for initialization. However, syzkaller can generate inconsistent crafted images that use an unsupported algorithmtype for specific inodes, e.g. use MicroLZMA algorithmtype even it's not set in `sbi->available_compr_algs`. This can lead to an unexpected "BUG: kernel NULL pointer dereference" if the corresponding decompressor isn't built-in. Fix this by checking against `sbi->available_compr_algs` for each m_algorithmformat request. Incorrect !erofs_sb_has_compr_cfgs preset bitmap is now fixed together since it was harmless previously.
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，该漏洞源于每个文件压缩格式不一致。
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 8f89926290c4b3d31748d5089b27952243be0693 ~ 47467e04816cb297905c0f09bc2d11ef865942d9 -
Linux Linux 5.16 -

II. Public POCs for CVE-2024-26590

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III. Intelligence Information for CVE-2024-26590

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Patches & Fixes for CVE-2024-26590 (1)

Other References for CVE-2024-26590 (3)

Same Patch Batch · Linux · 2024-02-22 · 17 CVEs total

CVE-2024-26592 9.8 CRITICAL ksmbd: fix UAF issue in ksmbd_tcp_new_connection()
CVE-2023-52447 7.8 HIGH bpf: Defer the free of inner map when necessary
CVE-2023-52444 7.8 HIGH f2fs: fix to avoid dirent corruption
CVE-2024-26589 7.8 HIGH bpf: Reject variable offset alu on PTR_TO_FLOW_KEYS
CVE-2024-26586 7.8 HIGH mlxsw: spectrum_acl_tcam: Fix stack corruption
CVE-2024-26591 bpf: Fix re-attachment branch in bpf_tracing_prog_attach
CVE-2023-52452 bpf: Fix accesses to uninit stack slots
CVE-2023-52451 powerpc/pseries/memhp: Fix access beyond end of drmem array
CVE-2023-52450 perf/x86/intel/uncore: Fix NULL pointer dereference issue in upi_fill_topology()
CVE-2023-52449 mtd: Fix gluebi NULL pointer dereference caused by ftl notifier
CVE-2023-52448 gfs2: Fix kernel NULL pointer dereference in gfs2_rgrp_dump
CVE-2023-52446 bpf: Fix a race condition between btf_put() and map_free()
CVE-2023-52445 media: pvrusb2: fix use after free on context disconnection
CVE-2024-26588 LoongArch: BPF: Prevent out-of-bounds memory access
CVE-2024-26587 net: netdevsim: don't try to destroy PHC on VFs
CVE-2023-52443 apparmor: avoid crash when parsed profile name is empty

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-26590

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