Search/CVE-2025-39735
● CVE — High

CVE-2025-39735

VendorlinuxProductlinux kernelDiscoveredApr 18, 2025UpdatedNov 3, 2025

In the Linux kernel, the following vulnerability has been resolved: jfs: fix slab-out-of-bounds read in ea_get() During the "size_check" label in ea_get(), the code checks if the extended attribute list (xattr) size matches ea_size. If not, it logs "ea_get: invalid extended attribute" and calls print_hex_dump(). Here, EALIST_SIZE(ea_buf->xattr) returns 4110417968, which exceeds INT_MAX (2,147,483,647). Then ea_size is clamped: int size = clamp_t(int, ea_size, 0, EALIST_SIZE(ea_buf->xattr)); Although clamp_t aims to bound ea_size between 0 and 4110417968, the upper limit is treated as an int, causing an overflow above 2^31 - 1. This leads "size" to wrap around and become negative (-184549328). The "size" is then passed to print_hex_dump() (called "len" in print_hex_dump()), it is passed as…

CVSS v3.1
7.1 HIGH
EPSS
0.30%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
9
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 16, 2026 → Sep 25, 2026
▲ 0.02pp
0.27% → 0.30% over 5 tracked changes
CVSS v3.1 Detail
Attack VectorLOCAL
Attack ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityNONE
AvailabilityHIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Connections
11 relationships
Timeline
disclosure → media coverage
Apr 18, 2025
Disclosure — published as a CVE record. · last revised by NVD Nov 3, 2025
Oct 22, 2025
ubuntu.com reports: USN-7835-1: Linux kernel vulnerabilities
Oct 22, 2025
ubuntu.com reports: USN-7835-2: Linux kernel (Real-time) vulnerabilities
Oct 22, 2025
ubuntu.com reports: USN-7835-3: Linux kernel vulnerabilities
Oct 31, 2025
ubuntu.com reports: USN-7835-4: Linux kernel (HWE) vulnerabilities
Nov 6, 2025
ubuntu.com reports: USN-7835-5: Linux kernel (Oracle) vulnerabilities
Nov 12, 2025
ubuntu.com reports: USN-7835-6: Linux kernel (AWS) vulnerabilities
Nov 24, 2025
ubuntu.com reports: USN-7887-1: Linux kernel (Raspberry Pi Real-time) vulnerabilities
Dec 17, 2025
ubuntu.com reports: USN-7940-1: Linux kernel (Azure FIPS) vulnerabilities
Jan 9, 2026
ubuntu.com reports: USN-7940-2: Linux kernel (Azure, N-Series) vulnerabilities