In the Linux kernel, the following vulnerability has been resolved:
fs/ntfs3: Fix OOB read in indx_insert_into_buffer
Syzbot reported a OOB read bug:
BUG: KASAN: slab-out-of-bounds in indx_insert_into_buffer+0xaa3/0x13b0 fs/ntfs3/index.c:1755 Read of size 17168 at addr ffff8880255e06c0 by task syz-executor308/3630
Call Trace: <TASK> memmove+0x25/0x60 mm/kasan/shadow.c:54 indx_insert_into_buffer+0xaa3/0x13b0 fs/ntfs3/index.c:1755 indx_insert_entry+0x446/0x6b0 fs/ntfs3/index.c:1863 ntfs_create_inode+0x1d3f/0x35c0 fs/ntfs3/inode.c:1548 ntfs_create+0x3e/0x60 fs/ntfs3/namei.c:100 lookup_open fs/namei.c:3413 [inline]
If the member struct INDEX_BUFFER *index of struct indx_node is incorrect, that is, the value of __le32 used is greater than the value of __le32 total in struct INDEX_HDR. Therefore, OOB read occurs when memmove is called in indx_insert_into_buffer(). Fix this by adding a check in hdr_find_e().
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade kernel-toolsUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-develUpgrade bpftoolUpgrade perfUpgrade kernel-tools-debuginfoUpgrade kernel-tools-develUpgrade perf-debuginfoUpgrade python-perf-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-livepatch-5.15.117-72.142Upgrade kernel-headersUpgrade kernel-debuginfoUpgrade python-perfUpgrade kernel-debuginfo-common-x86_64Upgrade kernel | May 20, 2026 | May 20, 2026 |
| Debian | — | Upgrade linux | Dec 29, 2025 | Dec 29, 2025 |
| Ubuntu | — | Upgrade linux-bluefieldUpgrade linux-gkeUpgrade linux-raspiUpgrade linux-nvidia-tegraUpgrade linux-lowlatency-hwe-5.15Upgrade linux-ibm-5.15Upgrade linux-intel-iot-realtimeUpgrade linuxUpgrade linux-aws-5.15Upgrade linux-nvidia-tegra-5.15Upgrade linux-awsUpgrade linux-realtimeUpgrade linux-intel-iotgUpgrade linux-nvidia-tegra-igxUpgrade linux-oracleUpgrade linux-intel-iotg-5.15Upgrade linux-azure-fdeUpgrade linux-xilinx-zynqmpUpgrade linux-lowlatencyUpgrade linux-gkeopUpgrade linux-azureUpgrade linux-nvidiaUpgrade linux-kvmUpgrade linux-azure-5.15Upgrade linux-hwe-5.15Upgrade linux-riscv-5.15Upgrade linux-gcpUpgrade linux-oracle-5.15Upgrade linux-ibmUpgrade linux-gcp-5.15 | Jan 6, 2026 | Dec 24, 2025 |
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