Summary
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Cryptographic API;
- Arm Firmware Framework for ARMv8-A(FFA);
- Multiple devices driver;
- Media drivers;
- Network drivers;
- NVDIMM (Non-Volatile Memory Device) drivers;
- NVME drivers;
- x86 platform drivers;
- TCM subsystem;
- Virtio drivers;
- File systems infrastructure;
- SMB network file system;
- LZO compression library;
- Digital Audio (PCM) driver;
- Tracing infrastructure;
- Padata parallel execution mechanism;
- CAN network layer;
- Networking core;
- TIPC protocol;
- ALSA framework;
(CVE-2025-38052, CVE-2025-38078, CVE-2025-38079, CVE-2025-38061,
CVE-2025-38044, CVE-2025-38065, CVE-2025-38043, CVE-2025-38034,
CVE-2025-38037, CVE-2025-38048, CVE-2025-38066, CVE-2025-38003,
CVE-2025-38058, CVE-2025-38075, CVE-2025-38077, CVE-2025-38051,
CVE-2025-38031, CVE-2025-38035, CVE-2025-38072, CVE-2025-38004,
CVE-2025-38068)
Fixed packages 3
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · Pro FIPS-updates 22.04 LTS Pro:FIPS-updates:22.04:LTS | linux-aws-fips | 5.15.0-1090.97+fips1 |
| Ubuntu · Pro FIPS-updates 22.04 LTS Pro:FIPS-updates:22.04:LTS | linux-fips | 5.15.0-152.162+fips1 |
| Ubuntu · Pro FIPS-updates 22.04 LTS Pro:FIPS-updates:22.04:LTS | linux-gcp-fips | 5.15.0-1090.99+fips1 |
Vulnerabilities 21
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Critical 9.8
scsi: target: iscsi: Fix timeout on deleted connection
In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Fix timeout on deleted connection NOPIN response timer may expire on a deleted connection and crash with such logs: Did not receive response to NOPIN on CID: 0, failing c…
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High 8.8
net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done
In the Linux kernel, the following vulnerability has been resolved: net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done Syzbot reported a slab-use-after-free with the following call trace: =========================================================…
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High 7.8
can: bcm: add missing rcu read protection for procfs content
In the Linux kernel, the following vulnerability has been resolved: can: bcm: add missing rcu read protection for procfs content When the procfs content is generated for a bcm_op which is in the process to be removed the procfs output might show unreliable da…
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High 7.8
smb: client: Fix use-after-free in cifs_fill_dirent
In the Linux kernel, the following vulnerability has been resolved: smb: client: Fix use-after-free in cifs_fill_dirent There is a race condition in the readdir concurrency process, which may access the rsp buffer after it has been released, triggering the fo…
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High 7.8
__legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock
In the Linux kernel, the following vulnerability has been resolved: __legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock ... or we risk stealing final mntput from sync umount - raising mnt_count after umount(2) has verified that victim is …
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High 7.8
orangefs: Do not truncate file size
In the Linux kernel, the following vulnerability has been resolved: orangefs: Do not truncate file size 'len' is used to store the result of i_size_read(), so making 'len' a size_t results in truncation to 4GiB on 32-bit systems.
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High 7.8
crypto: lzo - Fix compression buffer overrun
In the Linux kernel, the following vulnerability has been resolved: crypto: lzo - Fix compression buffer overrun Unlike the decompression code, the compression code in LZO never checked for output overruns. It instead assumes that the caller always provides e…
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High 7.8
ALSA: pcm: Fix race of buffer access at PCM OSS layer
In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Fix race of buffer access at PCM OSS layer The PCM OSS layer tries to clear the buffer with the silence data at initialization (or reconfiguration) of a stream with the explicit ca…
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High 7.8
crypto: algif_hash - fix double free in hash_accept
In the Linux kernel, the following vulnerability has been resolved: crypto: algif_hash - fix double free in hash_accept If accept(2) is called on socket type algif_hash with MSG_MORE flag set and crypto_ahash_import fails, sk2 is freed. However, it is also fr…
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High 7.5
nvmet-tcp: don't restore null sk_state_change
In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: don't restore null sk_state_change queue->state_change is set as part of nvmet_tcp_set_queue_sock(), but if the TCP connection isn't established when nvmet_tcp_set_queue_sock() is …
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High 7.3
can: bcm: add locking for bcm_op runtime updates
In the Linux kernel, the following vulnerability has been resolved: can: bcm: add locking for bcm_op runtime updates The CAN broadcast manager (CAN BCM) can send a sequence of CAN frames via hrtimer. The content and also the length of the sequence can be chan…
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Unscored —
padata: do not leak refcount in reorder_work
In the Linux kernel, the following vulnerability has been resolved: padata: do not leak refcount in reorder_work A recent patch that addressed a UAF introduced a reference count leak: the parallel_data refcount is incremented unconditionally, regardless of th…
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Unscored —
btrfs: correct the order of prelim_ref arguments in btrfs__prelim_ref
In the Linux kernel, the following vulnerability has been resolved: btrfs: correct the order of prelim_ref arguments in btrfs__prelim_ref btrfs_prelim_ref() calls the old and new reference variables in the incorrect order. This causes a NULL pointer dereferen…
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Unscored —
vxlan: Annotate FDB data races
In the Linux kernel, the following vulnerability has been resolved: vxlan: Annotate FDB data races The 'used' and 'updated' fields in the FDB entry structure can be accessed concurrently by multiple threads, leading to reports such as [1]. Can be reproduced u…
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Unscored —
firmware: arm_ffa: Set dma_mask for ffa devices
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_ffa: Set dma_mask for ffa devices Set dma_mask for FFA devices, otherwise DMA allocation using the device pointer lead to following warning: WARNING: CPU: 1 PID: 1 at kernel/dma…
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Unscored —
media: cx231xx: set device_caps for 417
In the Linux kernel, the following vulnerability has been resolved: media: cx231xx: set device_caps for 417 The video_device for the MPEG encoder did not set device_caps. Add this, otherwise the video device can't be registered (you get a WARN_ON instead). No…
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Unscored —
virtio_ring: Fix data race by tagging event_triggered as racy for KCSAN
In the Linux kernel, the following vulnerability has been resolved: virtio_ring: Fix data race by tagging event_triggered as racy for KCSAN syzbot reports a data-race when accessing the event_triggered, here is the simplified stack when the issue occurred: ==…
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Unscored —
net: pktgen: fix access outside of user given buffer in pktgen_thread_write()
In the Linux kernel, the following vulnerability has been resolved: net: pktgen: fix access outside of user given buffer in pktgen_thread_write() Honour the user given buffer size for the strn_len() calls (otherwise strn_len() will access memory outside of th…
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Unscored —
dm cache: prevent BUG_ON by blocking retries on failed device resumes
In the Linux kernel, the following vulnerability has been resolved: dm cache: prevent BUG_ON by blocking retries on failed device resumes A cache device failing to resume due to mapping errors should not be retried, as the failure leaves a partially initializ…
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Unscored —
libnvdimm/labels: Fix divide error in nd_label_data_init()
In the Linux kernel, the following vulnerability has been resolved: libnvdimm/labels: Fix divide error in nd_label_data_init() If a faulty CXL memory device returns a broken zero LSA size in its memory device information (Identify Memory Device (Opcode 4000h)…
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Unscored —
platform/x86: dell-wmi-sysman: Avoid buffer overflow in current_password_store()
In the Linux kernel, the following vulnerability has been resolved: platform/x86: dell-wmi-sysman: Avoid buffer overflow in current_password_store() If the 'buf' array received from the user contains an empty string, the 'length' variable will be zero. Access…
References
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report
https://ubuntu.com/security/CVE-2025-38003
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report
https://ubuntu.com/security/CVE-2025-38004
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report
https://ubuntu.com/security/CVE-2025-38031
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report
https://ubuntu.com/security/CVE-2025-38034
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report
https://ubuntu.com/security/CVE-2025-38035
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report
https://ubuntu.com/security/CVE-2025-38037
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report
https://ubuntu.com/security/CVE-2025-38043
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report
https://ubuntu.com/security/CVE-2025-38044
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report
https://ubuntu.com/security/CVE-2025-38048
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report
https://ubuntu.com/security/CVE-2025-38051
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report
https://ubuntu.com/security/CVE-2025-38052
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report
https://ubuntu.com/security/CVE-2025-38058
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report
https://ubuntu.com/security/CVE-2025-38061
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report
https://ubuntu.com/security/CVE-2025-38065
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report
https://ubuntu.com/security/CVE-2025-38066
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report
https://ubuntu.com/security/CVE-2025-38068
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report
https://ubuntu.com/security/CVE-2025-38072
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report
https://ubuntu.com/security/CVE-2025-38075
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report
https://ubuntu.com/security/CVE-2025-38077
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report
https://ubuntu.com/security/CVE-2025-38078
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report
https://ubuntu.com/security/CVE-2025-38079