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CVE-2025-21772— partitions: mac: fix handling of bogus partition table

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mac分区表处理不当，可能导致内存访问越界。

CVSS 7.8 · High EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 28

VendorProduct Version RangeStatus
Linux Linux 02e2a5bfebe99edcf9d694575a75032d53fe1b73< a3e77da9f843e4ab93917d30c314f0283e28c124 affected
02e2a5bfebe99edcf9d694575a75032d53fe1b73< 213ba5bd81b7e97ac6e6190b8f3bc6ba76123625 affected
02e2a5bfebe99edcf9d694575a75032d53fe1b73< 40a35d14f3c0dc72b689061ec72fc9b193f37d1f affected
02e2a5bfebe99edcf9d694575a75032d53fe1b73< 27a39d006f85e869be68c1d5d2ce05e5d6445bf5 affected
02e2a5bfebe99edcf9d694575a75032d53fe1b73< 92527100be38ede924768f4277450dfe8a40e16b affected
02e2a5bfebe99edcf9d694575a75032d53fe1b73< 6578717ebca91678131d2b1f4ba4258e60536e9f affected
02e2a5bfebe99edcf9d694575a75032d53fe1b73< 7fa9706722882f634090bfc9af642bf9ed719e27 affected
02e2a5bfebe99edcf9d694575a75032d53fe1b73< 80e648042e512d5a767da251d44132553fe04ae0 affected
… +20 more rows
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I. Basic Information for CVE-2025-21772

Vulnerability Information
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Vulnerability Title
partitions: mac: fix handling of bogus partition table
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: partitions: mac: fix handling of bogus partition table Fix several issues in partition probing: - The bailout for a bad partoffset must use put_dev_sector(), since the preceding read_part_sector() succeeded. - If the partition table claims a silly sector size like 0xfff bytes (which results in partition table entries straddling sector boundaries), bail out instead of accessing out-of-bounds memory. - We must not assume that the partition table contains proper NUL termination - use strnlen() and strncmp() instead of strlen() and strcmp().
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mac分区表处理不当，可能导致内存访问越界。
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 02e2a5bfebe99edcf9d694575a75032d53fe1b73 ~ a3e77da9f843e4ab93917d30c314f0283e28c124 -
Linux Linux 4.4 -

II. Public POCs for CVE-2025-21772

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III. Intelligence Information for CVE-2025-21772

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Patches & Fixes for CVE-2025-21772 (5)

Other References for CVE-2025-21772 (3)

Same Patch Batch · Linux · 2025-02-27 · 177 CVEs total

CVE-2025-21805 9.8 CRITICAL RDMA/rtrs: Add missing deinit() call
CVE-2025-21796 9.8 CRITICAL nfsd: clear acl_access/acl_default after releasing them
CVE-2025-21707 9.8 CRITICAL mptcp: consolidate suboption status
CVE-2025-21748 9.8 CRITICAL ksmbd: fix integer overflows on 32 bit systems
CVE-2024-58006 9.6 CRITICAL PCI: dwc: ep: Prevent changing BAR size/flags in pci_epc_set_bar()
CVE-2024-57999 8.8 HIGH powerpc/pseries/iommu: IOMMU incorrectly marks MMIO range in DDW
CVE-2025-21735 8.8 HIGH NFC: nci: Add bounds checking in nci_hci_create_pipe()
CVE-2024-57997 8.8 HIGH wifi: wcn36xx: fix channel survey memory allocation size
CVE-2024-57995 8.8 HIGH wifi: ath12k: fix read pointer after free in ath12k_mac_assign_vif_to_vdev()
CVE-2025-21710 8.2 HIGH tcp: correct handling of extreme memory squeeze
CVE-2025-21766 8.1 HIGH ipv4: use RCU protection in __ip_rt_update_pmtu()
CVE-2024-57973 8.1 HIGH rdma/cxgb4: Prevent potential integer overflow on 32bit
CVE-2025-21762 8.1 HIGH arp: use RCU protection in arp_xmit()
CVE-2025-21765 8.1 HIGH ipv6: use RCU protection in ip6_default_advmss()
CVE-2025-21760 8.1 HIGH ndisc: extend RCU protection in ndisc_send_skb()
CVE-2025-21764 7.8 HIGH ndisc: use RCU protection in ndisc_alloc_skb()
CVE-2024-58019 7.8 HIGH nvkm/gsp: correctly advance the read pointer of GSP message queue
CVE-2024-58008 7.8 HIGH KEYS: trusted: dcp: fix improper sg use with CONFIG_VMAP_STACK=y
CVE-2024-58010 7.8 HIGH binfmt_flat: Fix integer overflow bug on 32 bit systems
CVE-2024-58013 7.8 HIGH Bluetooth: MGMT: Fix slab-use-after-free Read in mgmt_remove_adv_monitor_sync

Showing top 20 of 177 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-21772

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