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CVE-2025-22079— ocfs2: validate l_tree_depth to avoid out-of-bounds access

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ocfs2中l_tree_depth字段，可能导致越界访问。

CVSS 7.8 · High EPSS 0.25% · P15

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux ccd979bdbce9fba8412beb3f1de68a9d0171b12c< ef34840bda333fe99bafbd2d73b70ceaaf9eba66 affected
ccd979bdbce9fba8412beb3f1de68a9d0171b12c< 538ed8b049ef801a86c543433e5061a91cc106e3 affected
ccd979bdbce9fba8412beb3f1de68a9d0171b12c< 17c99ab3db2ba74096d36c69daa6e784e98fc0b8 affected
ccd979bdbce9fba8412beb3f1de68a9d0171b12c< 11e24802e73362aa2948ee16b8fb4e32635d5b2a affected
ccd979bdbce9fba8412beb3f1de68a9d0171b12c< 3d012ba4404a0bb517658699ba85e6abda386dc3 affected
ccd979bdbce9fba8412beb3f1de68a9d0171b12c< 49d2a2ea9d30991bae82107f9523915b91637683 affected
ccd979bdbce9fba8412beb3f1de68a9d0171b12c< b942f88fe7d2d789e51c5c30a675fa1c126f5a6d affected
ccd979bdbce9fba8412beb3f1de68a9d0171b12c< e95d97c9c8cd0c239b7b59c79be0f6a9dcf7905c affected
… +12 more rows
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I. Basic Information for CVE-2025-22079

Vulnerability Information
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Vulnerability Title
ocfs2: validate l_tree_depth to avoid out-of-bounds access
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ocfs2: validate l_tree_depth to avoid out-of-bounds access The l_tree_depth field is 16-bit (__le16), but the actual maximum depth is limited to OCFS2_MAX_PATH_DEPTH. Add a check to prevent out-of-bounds access if l_tree_depth has an invalid value, which may occur when reading from a corrupted mounted disk [1].
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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ocfs2中l_tree_depth字段，可能导致越界访问。
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 ccd979bdbce9fba8412beb3f1de68a9d0171b12c ~ ef34840bda333fe99bafbd2d73b70ceaaf9eba66 -
Linux Linux 2.6.16 -

II. Public POCs for CVE-2025-22079

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III. Intelligence Information for CVE-2025-22079

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Other References for CVE-2025-22079 (7)

Same Patch Batch · Linux · 2025-04-16 · 127 CVEs total

CVE-2025-22021 10.0 CRITICAL netfilter: socket: Lookup orig tuple for IPv6 SNAT
CVE-2025-22088 9.8 CRITICAL RDMA/erdma: Prevent use-after-free in erdma_accept_newconn()
CVE-2025-22077 9.8 CRITICAL Revert "smb: client: fix TCP timers deadlock after rmmod"
CVE-2025-22110 9.8 CRITICAL netfilter: nfnetlink_queue: Initialize ctx to avoid memory allocation error
CVE-2025-22041 8.8 HIGH ksmbd: fix use-after-free in ksmbd_sessions_deregister()
CVE-2025-22086 8.8 HIGH RDMA/mlx5: Fix mlx5_poll_one() cur_qp update flow
CVE-2025-22039 8.8 HIGH ksmbd: fix overflow in dacloffset bounds check
CVE-2025-23133 8.8 HIGH wifi: ath11k: update channel list in reg notifier instead reg worker
CVE-2024-58096 8.8 HIGH wifi: ath11k: add srng->lock for ath11k_hal_srng_* in monitor mode
CVE-2025-22040 8.8 HIGH ksmbd: fix session use-after-free in multichannel connection
CVE-2025-22118 8.8 HIGH ice: validate queue quanta parameters to prevent OOB access
CVE-2025-22074 8.8 HIGH ksmbd: fix r_count dec/increment mismatch
CVE-2025-22117 8.7 HIGH ice: fix using untrusted value of pkt_len in ice_vc_fdir_parse_raw()
CVE-2025-22108 8.6 HIGH bnxt_en: Mask the bd_cnt field in the TX BD properly
CVE-2025-22121 8.4 HIGH ext4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all()
CVE-2025-22080 8.4 HIGH fs/ntfs3: Prevent integer overflow in hdr_first_de()
CVE-2025-22038 8.3 HIGH ksmbd: validate zero num_subauth before sub_auth is accessed
CVE-2025-22042 8.1 HIGH ksmbd: add bounds check for create lease context
CVE-2025-22043 8.1 HIGH ksmbd: add bounds check for durable handle context
CVE-2025-22047 7.8 HIGH x86/microcode/AMD: Fix __apply_microcode_amd()'s return value

Showing top 20 of 127 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-22079

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