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CVE-2023-52526— erofs: fix memory leak of LZMA global compressed deduplication

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，该漏洞源于存在内存泄漏问题。

AI Predicted 5.5 Difficulty: Easy EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1496 · Resource Hijacking

Affected Version Matrix 8

VendorProduct Version RangeStatus
Linux Linux 5c2a64252c5dc4cfe78e5b2a531c118894e3d155< 6a5a8f0a9740f865693d5aa97a42cc4504538e18 affected
5c2a64252c5dc4cfe78e5b2a531c118894e3d155< c955751cbf864cf2055117dd3fe7f780d2a57b56 affected
5c2a64252c5dc4cfe78e5b2a531c118894e3d155< 75a5221630fe5aa3fedba7a06be618db0f79ba1e affected
6.1 affected
< 6.1 unaffected
6.1.57≤ 6.1.* unaffected
6.5.7≤ 6.5.* unaffected
6.6≤ * unaffected
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I. Basic Information for CVE-2023-52526

Vulnerability Information
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Vulnerability Title
erofs: fix memory leak of LZMA global compressed deduplication
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: erofs: fix memory leak of LZMA global compressed deduplication When stressing microLZMA EROFS images with the new global compressed deduplication feature enabled (`-Ededupe`), I found some short-lived temporary pages weren't properly released, which could slowly cause unexpected OOMs hours later. Let's fix it now (LZ4 and DEFLATE don't have this issue.)
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，该漏洞源于存在内存泄漏问题。
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 5c2a64252c5dc4cfe78e5b2a531c118894e3d155 ~ 6a5a8f0a9740f865693d5aa97a42cc4504538e18 -
Linux Linux 6.1 -

II. Public POCs for CVE-2023-52526

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III. Intelligence Information for CVE-2023-52526

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Other References for CVE-2023-52526 (3)

Same Patch Batch · Linux · 2024-03-02 · 57 CVEs total

CVE-2023-52515 9.8 CRITICAL RDMA/srp: Do not call scsi_done() from srp_abort()
CVE-2023-52522 8.8 HIGH net: fix possible store tearing in neigh_periodic_work()
CVE-2023-52530 8.8 HIGH wifi: mac80211: fix potential key use-after-free
CVE-2023-52502 8.8 HIGH net: nfc: fix races in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn()
CVE-2024-26621 8.2 HIGH mm: huge_memory: don't force huge page alignment on 32 bit
CVE-2023-52523 7.8 HIGH bpf, sockmap: Reject sk_msg egress redirects to non-TCP sockets
CVE-2023-52509 7.8 HIGH ravb: Fix use-after-free issue in ravb_tx_timeout_work()
CVE-2023-52572 7.8 HIGH cifs: Fix UAF in cifs_demultiplex_thread()
CVE-2023-52574 7.8 HIGH team: fix null-ptr-deref when team device type is changed
CVE-2023-52517 7.8 HIGH spi: sun6i: fix race between DMA RX transfer completion and RX FIFO drain
CVE-2023-52503 7.8 HIGH tee: amdtee: fix use-after-free vulnerability in amdtee_close_session
CVE-2023-52513 7.5 HIGH RDMA/siw: Fix connection failure handling
CVE-2023-52565 7.1 HIGH media: uvcvideo: Fix OOB read
CVE-2023-52560 mm/damon/vaddr-test: fix memory leak in damon_do_test_apply_three_regions()
CVE-2023-52564 Revert "tty: n_gsm: fix UAF in gsm_cleanup_mux"
CVE-2023-52562 mm/slab_common: fix slab_caches list corruption after kmem_cache_destroy()
CVE-2023-52582 netfs: Only call folio_start_fscache() one time for each folio
CVE-2023-52566 nilfs2: fix potential use after free in nilfs_gccache_submit_read_data()
CVE-2023-52559 iommu/vt-d: Avoid memory allocation in iommu_suspend()
CVE-2023-52561 arm64: dts: qcom: sdm845-db845c: Mark cont splash memory region as reserved

Showing top 20 of 57 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52526

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