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:
- Media drivers;
- NVME drivers;
- File systems infrastructure;
- Timer subsystem;
- Memory management;
- Packet sockets;
(CVE-2022-48986, CVE-2024-27078, CVE-2024-49959, CVE-2024-50195,
CVE-2024-56606, CVE-2024-56756, CVE-2025-39993)
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · Pro FIPS-updates 18.04 LTS Pro:FIPS-updates:18.04:LTS | linux-gcp-fips | 4.15.0-2089.95 |
Vulnerabilities 7
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High 7.8
mm/gup: fix gup_pud_range() for dax
In the Linux kernel, the following vulnerability has been resolved: mm/gup: fix gup_pud_range() for dax For dax pud, pud_huge() returns true on x86. So the function works as long as hugetlb is configured. However, dax doesn't depend on hugetlb. Commit 414fd08…
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High 7.8
af_packet: avoid erroring out after sock_init_data() in packet_create()
In the Linux kernel, the following vulnerability has been resolved: af_packet: avoid erroring out after sock_init_data() in packet_create() After sock_init_data() the allocated sk object is attached to the provided sock object. On error, packet_create() frees…
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High 7.8
media: rc: fix races with imon_disconnect()
In the Linux kernel, the following vulnerability has been resolved: media: rc: fix races with imon_disconnect() Syzbot reports a KASAN issue as below: BUG: KASAN: use-after-free in __create_pipe include/linux/usb.h:1945 [inline] BUG: KASAN: use-after-free in …
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High 7.1
posix-clock: Fix missing timespec64 check in pc_clock_settime()
In the Linux kernel, the following vulnerability has been resolved: posix-clock: Fix missing timespec64 check in pc_clock_settime() As Andrew pointed out, it will make sense that the PTP core checked timespec64 struct's tv_sec and tv_nsec range before calling…
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Medium 5.5
nvme-pci: fix freeing of the HMB descriptor table
In the Linux kernel, the following vulnerability has been resolved: nvme-pci: fix freeing of the HMB descriptor table The HMB descriptor table is sized to the maximum number of descriptors that could be used for a given device, but __nvme_alloc_host_mem could…
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Unscored —
media: v4l2-tpg: fix some memleaks in tpg_alloc
In the Linux kernel, the following vulnerability has been resolved: media: v4l2-tpg: fix some memleaks in tpg_alloc In tpg_alloc, resources should be deallocated in each and every error-handling paths, since they are allocated in for statements. Otherwise the…
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Unscored —
jbd2: stop waiting for space when jbd2_cleanup_journal_tail() returns error
In the Linux kernel, the following vulnerability has been resolved: jbd2: stop waiting for space when jbd2_cleanup_journal_tail() returns error In __jbd2_log_wait_for_space(), we might call jbd2_cleanup_journal_tail() to recover some journal space. But if an …
References
-
report
https://ubuntu.com/security/CVE-2022-48986
-
report
https://ubuntu.com/security/CVE-2024-27078
-
report
https://ubuntu.com/security/CVE-2024-49959
-
report
https://ubuntu.com/security/CVE-2024-50195
-
report
https://ubuntu.com/security/CVE-2024-56606
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report
https://ubuntu.com/security/CVE-2024-56756
-
report
https://ubuntu.com/security/CVE-2025-39993