CVE-2026-53196
In the Linux kernel, the following vulnerability has been resolved: USB: serial: io_ti: fix heap overflow in get_manuf_info() get_manuf_info() reads le16_to_cpu(rom_desc->Size) bytes from the device I2C EEPROM into a buffer allocated with kmalloc_obj(),…
Does this matter?
Lower severity and a low EPSS score (0.27%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: USB: serial: io_ti: fix heap overflow in get_manuf_info() get_manuf_info() reads le16_to_cpu(rom_desc->Size) bytes from the device I2C EEPROM into a buffer allocated with kmalloc_obj(), which is sizeof(struct edge_ti_manuf_descriptor) = 10 bytes. The Size field comes from the device and is only validated (in check_i2c_image()) to make sure the descriptor fits within TI_MAX_I2C_SIZE (16384 bytes), not against the destination buffer size. A malicious USB device can therefore set Size to any value up to 16377, causing a heap overflow of up to 16367 bytes when plugged into a host running this driver. valid_csum() is called after read_rom() and also iterates buffer[0..Size-1], compounding the out-of-bounds access. Fix by rejecting descriptors with unexpected length before calling read_rom(). [ johan: amend commit message; also check for short descriptors ]
- CVSS 3.1
- 6.8 MEDIUMCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.27% probability · 19th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/183c1076eca43bbb3e7bdf597456f91d81c73e74Patch
- https://git.kernel.org/stable/c/561edb021486e6723d841926aa4b48097da06190Patch
- https://git.kernel.org/stable/c/b849f30d1a9e66aae6b715aaef66e427390cb081Patch
- https://git.kernel.org/stable/c/cfd634f6dfd40c49a84f9bddc2867a80e2e2623aPatch
- https://git.kernel.org/stable/c/d214d2341d4f9f447e36a7d012cdf6a6631a55f1Patch
- https://git.kernel.org/stable/c/d92f17af7097d10bdeddf26f66f34b354104b277Patch
- https://git.kernel.org/stable/c/e168db91442b94e64fa82a7dd297983d48ea5cc0Patch
- https://git.kernel.org/stable/c/f96cf7bf9fbf15d7fcf0c91fec47ba8a010369eaPatch
- https://access.redhat.com/errata/RHSA-2026:61887
- https://access.redhat.com/errata/RHSA-2026:65708
- https://access.redhat.com/errata/RHSA-2026:65709
- https://access.redhat.com/errata/RHSA-2026:65710
- https://access.redhat.com/errata/RHSA-2026:65711
- https://access.redhat.com/errata/RHSA-2026:65712
- https://access.redhat.com/security/cve/CVE-2026-53196Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2492750Issue Tracking, Third Party Advisory
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53196.jsonThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.