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In the Linux kernel, the following vulnerability has been resolved:
fs/ntfs3: Fix slab-out-of-bounds read in hdr_delete_de()
Here is a BUG report from syzbot:
BUG: KASAN: slab-out-of-bounds in hdr_delete_de+0xe0/0x150 fs/ntfs3/index.c:806 Read of size 16842960 at addr ffff888079cc0600 by task syz-executor934/3631
Call Trace: memmove+0x25/0x60 mm/kasan/shadow.c:54 hdr_delete_de+0xe0/0x150 fs/ntfs3/index.c:806 indx_delete_entry+0x74f/0x3670 fs/ntfs3/index.c:2193 ni_remove_name+0x27a/0x980 fs/ntfs3/frecord.c:2910 ntfs_unlink_inode+0x3d4/0x720 fs/ntfs3/inode.c:1712 ntfs_rename+0x41a/0xcb0 fs/ntfs3/namei.c:276
Before using the meta-data in struct INDEX_HDR, we need to check index header valid or not. Otherwise, the corruptedi (or malicious) fs image can cause out-of-bounds access which could make kernel panic.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade python-perf-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-livepatch-5.15.117-72.142Upgrade kernel-headersUpgrade perf-debuginfoUpgrade perfUpgrade kernel-tools-develUpgrade kernel-toolsUpgrade kernel-tools-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debuginfoUpgrade kernel-develUpgrade bpftoolUpgrade kernelUpgrade python-perf | May 20, 2026 | May 20, 2026 |
| Debian | — | Upgrade linux | Dec 29, 2025 | Dec 29, 2025 |
| Ubuntu | — | Upgrade linux-azure-5.15Upgrade linux-gkeUpgrade linux-nvidia-tegra-igxUpgrade linux-nvidia-tegraUpgrade linuxUpgrade linux-awsUpgrade linux-ibm-5.15Upgrade linux-gcpUpgrade linux-lowlatencyUpgrade linux-nvidia-tegra-5.15Upgrade linux-gkeopUpgrade linux-intel-iot-realtimeUpgrade linux-oracle-5.15Upgrade linux-ibmUpgrade linux-xilinx-zynqmpUpgrade linux-nvidiaUpgrade linux-oracleUpgrade linux-azure-fdeUpgrade linux-intel-iotg-5.15Upgrade linux-hwe-5.15Upgrade linux-kvmUpgrade linux-azureUpgrade linux-lowlatency-hwe-5.15Upgrade linux-bluefieldUpgrade linux-raspiUpgrade linux-intel-iotgUpgrade linux-aws-5.15Upgrade linux-riscv-5.15Upgrade linux-realtimeUpgrade linux-gcp-5.15 | Jan 6, 2026 | Dec 24, 2025 |
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