CVSS: 7.8EPSS: 0%CPEs: 8EXPL: 0CVE-2025-40205 – btrfs: avoid potential out-of-bounds in btrfs_encode_fh()
https://notcve.org/view.php?id=CVE-2025-40205
12 Nov 2025 — In the Linux kernel, the following vulnerability has been resolved: btrfs: avoid potential out-of-bounds in btrfs_encode_fh() The function btrfs_encode_fh() does not properly account for the three cases it handles. Before writing to the file handle (fh), the function only returns to the user BTRFS_FID_SIZE_NON_CONNECTABLE (5 dwords, 20 bytes) or BTRFS_FID_SIZE_CONNECTABLE (8 dwords, 32 bytes). However, when a parent exists and the root ID of the parent and the inode are different, the function writes BTRFS_... • https://git.kernel.org/stable/c/be6e8dc0ba84029997075a1ec77b4ddb863cbe15 •
CVSS: 6.3EPSS: 0%CPEs: 8EXPL: 0CVE-2025-40204 – sctp: Fix MAC comparison to be constant-time
https://notcve.org/view.php?id=CVE-2025-40204
12 Nov 2025 — In the Linux kernel, the following vulnerability has been resolved: sctp: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this. In the Linux kernel, the following vulnerability has been resolved: sctp: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this. • https://git.kernel.org/stable/c/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 •
CVSS: 6.3EPSS: 0%CPEs: 8EXPL: 0CVE-2025-40200 – Squashfs: reject negative file sizes in squashfs_read_inode()
https://notcve.org/view.php?id=CVE-2025-40200
12 Nov 2025 — In the Linux kernel, the following vulnerability has been resolved: Squashfs: reject negative file sizes in squashfs_read_inode() Syskaller reports a "WARNING in ovl_copy_up_file" in overlayfs. This warning is ultimately caused because the underlying Squashfs file system returns a file with a negative file size. This commit checks for a negative file size and returns EINVAL. [phillip@squashfs.org.uk: only need to check 64 bit quantity] In the Linux kernel, the following vulnerability has been resolved: Squa... • https://git.kernel.org/stable/c/6545b246a2c815a8fcd07d58240effb6ec3481b1 •
CVSS: 7.1EPSS: 0%CPEs: 7EXPL: 0CVE-2025-40198 – ext4: avoid potential buffer over-read in parse_apply_sb_mount_options()
https://notcve.org/view.php?id=CVE-2025-40198
12 Nov 2025 — In the Linux kernel, the following vulnerability has been resolved: ext4: avoid potential buffer over-read in parse_apply_sb_mount_options() Unlike other strings in the ext4 superblock, we rely on tune2fs to make sure s_mount_opts is NUL terminated. Harden parse_apply_sb_mount_options() by treating s_mount_opts as a potential __nonstring. In the Linux kernel, the following vulnerability has been resolved: ext4: avoid potential buffer over-read in parse_apply_sb_mount_options() Unlike other strings in the ex... • https://git.kernel.org/stable/c/8b67f04ab9de5d8f3a71aef72bf02c995a506db5 •
CVSS: 6.6EPSS: 0%CPEs: 8EXPL: 0CVE-2025-40197 – media: mc: Clear minor number before put device
https://notcve.org/view.php?id=CVE-2025-40197
12 Nov 2025 — In the Linux kernel, the following vulnerability has been resolved: media: mc: Clear minor number before put device The device minor should not be cleared after the device is released. • https://git.kernel.org/stable/c/dd156f44ea82cc249f46c519eed3b2f8983c8002 •
CVSS: 5.5EPSS: 0%CPEs: 3EXPL: 0CVE-2025-40195 – mount: handle NULL values in mnt_ns_release()
https://notcve.org/view.php?id=CVE-2025-40195
12 Nov 2025 — In the Linux kernel, the following vulnerability has been resolved: mount: handle NULL values in mnt_ns_release() When calling in listmount() mnt_ns_release() may be passed a NULL pointer. Handle that case gracefully. In the Linux kernel, the following vulnerability has been resolved: mount: handle NULL values in mnt_ns_release() When calling in listmount() mnt_ns_release() may be passed a NULL pointer. Handle that case gracefully. • https://git.kernel.org/stable/c/2d68f8a7379d9c61005e982600c61948d4d019bd •
CVSS: 5.5EPSS: 0%CPEs: 5EXPL: 0CVE-2025-40193 – xtensa: simdisk: add input size check in proc_write_simdisk
https://notcve.org/view.php?id=CVE-2025-40193
12 Nov 2025 — In the Linux kernel, the following vulnerability has been resolved: xtensa: simdisk: add input size check in proc_write_simdisk A malicious user could pass an arbitrarily bad value to memdup_user_nul(), potentially causing kernel crash. This follows the same pattern as commit ee76746387f6 ("netdevsim: prevent bad user input in nsim_dev_health_break_write()") In the Linux kernel, the following vulnerability has been resolved: xtensa: simdisk: add input size check in proc_write_simdisk A malicious user could ... • https://git.kernel.org/stable/c/b6c7e873daf765e41233b9752083b66442703b7a •
CVSS: 7.1EPSS: 0%CPEs: 8EXPL: 0CVE-2025-40190 – ext4: guard against EA inode refcount underflow in xattr update
https://notcve.org/view.php?id=CVE-2025-40190
12 Nov 2025 — In the Linux kernel, the following vulnerability has been resolved: ext4: guard against EA inode refcount underflow in xattr update syzkaller found a path where ext4_xattr_inode_update_ref() reads an EA inode refcount that is already <= 0 and then applies ref_change (often -1). That lets the refcount underflow and we proceed with a bogus value, triggering errors like: EXT4-fs error: EA inode
CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0CVE-2025-40188 – pwm: berlin: Fix wrong register in suspend/resume
https://notcve.org/view.php?id=CVE-2025-40188
12 Nov 2025 — In the Linux kernel, the following vulnerability has been resolved: pwm: berlin: Fix wrong register in suspend/resume The 'enable' register should be BERLIN_PWM_EN rather than BERLIN_PWM_ENABLE, otherwise, the driver accesses wrong address, there will be cpu exception then kernel panic during suspend/resume. In the Linux kernel, the following vulnerability has been resolved: pwm: berlin: Fix wrong register in suspend/resume The 'enable' register should be BERLIN_PWM_EN rather than BERLIN_PWM_ENABLE, otherwi... • https://git.kernel.org/stable/c/bbf0722c1c663b08f612bd8c58af27f45aa84862 •
CVSS: 5.5EPSS: 0%CPEs: 8EXPL: 0CVE-2025-40178 – pid: Add a judgment for ns null in pid_nr_ns
https://notcve.org/view.php?id=CVE-2025-40178
12 Nov 2025 — In the Linux kernel, the following vulnerability has been resolved: pid: Add a judgment for ns null in pid_nr_ns __task_pid_nr_ns ns = task_active_pid_ns(current); pid_nr_ns(rcu_dereference(*task_pid_ptr(task, type)), ns); if (pid && ns->level <= pid->level) { Sometimes null is returned for task_active_pid_ns. Then it will trigger kernel panic in pid_nr_ns. For example: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000058 Mem abort info: ESR = 0x0000000096000007 EC = 0x25: DA... • https://git.kernel.org/stable/c/75dbc029c5359438be4a6f908bfbfdab969af776 •