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Ubuntu 24.04 LTS Linux Kernel Important Security Advisory USN-8569-1

ubuntu
Calendar Grey July 20, 2026
Scroller Ubuntu
Ubuntu kernel fixes address multiple security issues affecting the performance and integrity of the system, ensuring safer operation.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-hwe-7.0: Linux hardware enablement (HWE) kernel

Details:

It was discovered that some AMD processors did not properly clear data in

the floating point divider unit during speculative execution. A local

attacker could use this to expose sensitive information. (CVE-2025-54505)

It was discovered that some AMD Zen 2 processors did not properly isolate

shared resources in the operation cache. A local attacker could possibly

use this issue to corrupt instructions executed at a higher privilege

level, resulting in privilege escalation. (CVE-2025-54518)

It was discovered that the Linux kernel did not properly handle shared page

fragments during socket buffer operations, collectively known as Dirty

Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the

RxRPC networking subsystem when processing paged fragments. A local

attacker could use this to escalate privileges, or possibly escape a

...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory critical privilege escalation Ubuntu memory leak kernel

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 24.04 LTS
  linux-image-7.0.0-28-generic    7.0.0-28.28~24.04.1
  linux-image-7.0.0-28-generic-64k  7.0.0-28.28~24.04.1
  linux-image-generic-64k-7.0     7.0.0-28.28~24.04.1
  linux-image-generic-64k-hwe-24.04  7.0.0-28.28~24.04.1
  linux-image-generic-7.0         7.0.0-28.28~24.04.1
  linux-image-generic-hwe-24.04   7.0.0-28.28~24.04.1
  linux-image-virtual-7.0         7.0.0-28.28~24.04.1
  linux-image-virtual-hwe-24.04   7.0.0-28.28~24.04.1

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References

https://ubuntu.com/security/notices/USN-8569-1

CVE-2025-54505, CVE-2025-54518, CVE-2026-31532, CVE-2026-31574,

CVE-2026-31575, CVE-2026-31576, CVE-2026-31577, CVE-2026-31578,

CVE-2026-31579, CVE-2026-31580, CVE-2026-31581, CVE-2026-31582,

CVE-2026-31583, CVE-2026-31584, CVE-2026-31585, CVE-2026-31586,

CVE-2026-31587, CVE-2026-31588, CVE-2026-31589, CVE-2026-31590,

CVE-2026-31591, CVE-2026-31592, CVE-2026-31593, CVE-2026-31594,

CVE-2026-31595, CVE-2026-31596, CVE-2026-31597, CVE-2026-31598,

CVE-2026-31599, CVE-2026-31600, CVE-2026-31601, CVE-2026-31602,

CVE-2026-31603, CVE-2026-31604, CVE-2026-31605, CVE-2026-31606,

CVE-2026-31607, CVE-2026-31608, CVE-2026-31609, CVE-2026-31610,

CVE-2026-31611, CVE-2026-31612, CVE-2026-31613, CVE-2026-31614,

CVE-2026-31615, CVE-2026-31616, CVE-2026-31617, CVE-2026-31618,

CVE-2026-31619, CVE-2026-31620, CVE-2026-31621, CVE-2026-31622,

CVE-2026-31623, CVE-2026-31624, CVE-2026-31625, CVE-2026-31626,

CVE-2026-31627, CVE-2026-31628, CVE-2026-31629, CVE-2026-31686,

CVE-2026-31694, CVE-2026-31696, CVE-2026-31697, CVE-2026-31698,

CVE-2026-31699, CVE-2026-31700, CVE-2026-31701, CVE-2026-31702,

CVE-2026-31703, CVE-2026-31704, CVE-2026-31705, CVE-2026-31706,

CVE-2026-31707, CVE-2026-31708, CVE-2026-31709, CVE-2026-31710,

CVE-2026-31711, CVE-2026-31712, CVE-2026-31713, CVE-2026-31714,

CVE-2026-31715, CVE-2026-31716, CVE-2026-31717, CVE-2026-31718,

CVE-2026-31719, CVE-2026-43058, CVE-2026-43071, CVE-2026-43072,

CVE-2026-43073, CVE-2026-43284, CVE-2026-43348, CVE-2026-43349,

CVE-2026-43350, CVE-2026-43490, CVE-2026-43491, CVE-2026-43492,

CVE-2026-43493, CVE-2026-43494, CVE-2026-43495, CVE-2026-43496,

CVE-2026-43497, CVE-2026-43498, CVE-2026-43499, CVE-2026-43500,

CVE-2026-43501, CVE-2026-43502, CVE-2026-43503, CVE-2026-45834,

CVE-2026-45835, CVE-2026-45836, CVE-2026-45837, CVE-2026-45838,

CVE-2026-45839, CVE-2026-45840, CVE-2026-45841, CVE-2026-45842,

CVE-2026-45843, CVE-2026-45844, CVE-2026-45845, CVE-2026-45846,

CVE-2026-45986, CVE-2026-45987, CVE-2026-45988, CVE-2026-45989,

CVE-2026-45990, CVE-2026-45991, CVE-2026-45994, CVE-2026-45995,

CVE-2026-45996, CVE-2026-45997, CVE-2026-45998, CVE-2026-45999,

CVE-2026-46000, CVE-2026-46001, CVE-2026-46002, CVE-2026-46003,

CVE-2026-46004, CVE-2026-46005, CVE-2026-46006, CVE-2026-46007,

CVE-2026-46008, CVE-2026-46009, CVE-2026-46010, CVE-2026-46011,

CVE-2026-46012, CVE-2026-46013, CVE-2026-46014, CVE-2026-46015,

CVE-2026-46016, CVE-2026-46018, CVE-2026-46019, CVE-2026-46020,

CVE-2026-46021, CVE-2026-46022, CVE-2026-46023, CVE-2026-46024,

CVE-2026-46025, CVE-2026-46026, CVE-2026-46027, CVE-2026-46028,

CVE-2026-46029, CVE-2026-46030, CVE-2026-46031, CVE-2026-46032,

CVE-2026-46033, CVE-2026-46034, CVE-2026-46035, CVE-2026-46036,

CVE-2026-46037, CVE-2026-46038, CVE-2026-46039, CVE-2026-46040,

CVE-2026-46041, CVE-2026-46042, CVE-2026-46043, CVE-2026-46044,

CVE-2026-46045, CVE-2026-46046, CVE-2026-46047, CVE-2026-46049,

CVE-2026-46050, CVE-2026-46051, CVE-2026-46052, CVE-2026-46053,

CVE-2026-46054, CVE-2026-46056, CVE-2026-46057, CVE-2026-46058,

CVE-2026-46059, CVE-2026-46060, CVE-2026-46061, CVE-2026-46062,

CVE-2026-46063, CVE-2026-46064, CVE-2026-46065, CVE-2026-46066,

CVE-2026-46067, CVE-2026-46068, CVE-2026-46069, CVE-2026-46070,

CVE-2026-46071, CVE-2026-46072, CVE-2026-46073, CVE-2026-46074,

CVE-2026-46075, CVE-2026-46076, CVE-2026-46077, CVE-2026-46078,

CVE-2026-46079, CVE-2026-46080, CVE-2026-46081, CVE-2026-46082,

CVE-2026-46083, CVE-2026-46084, CVE-2026-46085, CVE-2026-46086,

CVE-2026-46087, CVE-2026-46088, CVE-2026-46089, CVE-2026-46090,

CVE-2026-46091, CVE-2026-46092, CVE-2026-46093, CVE-2026-46094,

CVE-2026-46095, CVE-2026-46096, CVE-2026-46097, CVE-2026-46098,

CVE-2026-46099, CVE-2026-46100, CVE-2026-46101, CVE-2026-46102,

CVE-2026-46103, CVE-2026-46104, CVE-2026-46105, CVE-2026-46106,

CVE-2026-46107, CVE-2026-46108, CVE-2026-46109, CVE-2026-46110,

CVE-2026-46111, CVE-2026-46112, CVE-2026-46113, CVE-2026-46114,

CVE-2026-46115, CVE-2026-46116, CVE-2026-46117, CVE-2026-46118,

CVE-2026-46119, CVE-2026-46120, CVE-2026-46121, CVE-2026-46122,

CVE-2026-46123, CVE-2026-46124, CVE-2026-46125, CVE-2026-46126,

CVE-2026-46127, CVE-2026-46128, CVE-2026-46129, CVE-2026-46130,

CVE-2026-46131, CVE-2026-46132, CVE-2026-46133, CVE-2026-46134,

CVE-2026-46135, CVE-2026-46136, CVE-2026-46137, CVE-2026-46138,

CVE-2026-46139, CVE-2026-46140, CVE-2026-46141, CVE-2026-46142,

CVE-2026-46143, CVE-2026-46144, CVE-2026-46145, CVE-2026-46146,

CVE-2026-46147, CVE-2026-46148, CVE-2026-46149, CVE-2026-46150,

CVE-2026-46151, CVE-2026-46152, CVE-2026-46153, CVE-2026-46154,

CVE-2026-46155, CVE-2026-46156, CVE-2026-46157, CVE-2026-46158,

CVE-2026-46159, CVE-2026-46160, CVE-2026-46161, CVE-2026-46162,

CVE-2026-46163, CVE-2026-46164, CVE-2026-46165, CVE-2026-46166,

CVE-2026-46167, CVE-2026-46168, CVE-2026-46169, CVE-2026-46170,

CVE-2026-46171, CVE-2026-46172, CVE-2026-46173, CVE-2026-46174,

CVE-2026-46175, CVE-2026-46176, CVE-2026-46177, CVE-2026-46178,

CVE-2026-46179, CVE-2026-46180, CVE-2026-46181, CVE-2026-46182,

CVE-2026-46183, CVE-2026-46184, CVE-2026-46185, CVE-2026-46186,

CVE-2026-46187, CVE-2026-46188, CVE-2026-46189, CVE-2026-46190,

CVE-2026-46191, CVE-2026-46192, CVE-2026-46193, CVE-2026-46194,

CVE-2026-46195, CVE-2026-46196, CVE-2026-46197, CVE-2026-46198,

CVE-2026-46199, CVE-2026-46200, CVE-2026-46201, CVE-2026-46202,

CVE-2026-46203, CVE-2026-46204, CVE-2026-46205, CVE-2026-46206,

CVE-2026-46207, CVE-2026-46208, CVE-2026-46209, CVE-2026-46210,

CVE-2026-46211, CVE-2026-46212, CVE-2026-46213, CVE-2026-46214,

CVE-2026-46215, CVE-2026-46216, CVE-2026-46218, CVE-2026-46219,

CVE-2026-46220, CVE-2026-46221, CVE-2026-46222, CVE-2026-46223,

CVE-2026-46224, CVE-2026-46225, CVE-2026-46226, CVE-2026-46227,

CVE-2026-46228, CVE-2026-46229, CVE-2026-46230, CVE-2026-46231,

CVE-2026-46232, CVE-2026-46233, CVE-2026-46234, CVE-2026-46235,

CVE-2026-46236, CVE-2026-46238, CVE-2026-46239, CVE-2026-46240,

CVE-2026-46241, CVE-2026-46242, CVE-2026-46243, CVE-2026-46244,

CVE-2026-46273, CVE-2026-46274, CVE-2026-46275, CVE-2026-46276,

CVE-2026-46277, CVE-2026-46278, CVE-2026-46279, CVE-2026-46280,

CVE-2026-46281, CVE-2026-46282, CVE-2026-46283, CVE-2026-46284,

CVE-2026-46285, CVE-2026-46286, CVE-2026-46287, CVE-2026-46288,

CVE-2026-46289, CVE-2026-46290, CVE-2026-46291, CVE-2026-46292,

CVE-2026-46293, CVE-2026-46294, CVE-2026-46295, CVE-2026-46296,

CVE-2026-46297, CVE-2026-46298, CVE-2026-46299, CVE-2026-46300,

CVE-2026-46301, CVE-2026-46302, CVE-2026-46303, CVE-2026-46304,

CVE-2026-46305, CVE-2026-46306, CVE-2026-46307, CVE-2026-46308,

CVE-2026-46309, CVE-2026-46310, CVE-2026-46311, CVE-2026-46312,

CVE-2026-46313, CVE-2026-46314, CVE-2026-46315, CVE-2026-46316,

CVE-2026-46317, CVE-2026-46318, CVE-2026-46319, CVE-2026-46320,

CVE-2026-46321, CVE-2026-46322, CVE-2026-46323, CVE-2026-46324,

CVE-2026-46332, CVE-2026-46333, CVE-2026-47326, CVE-2026-47327,

CVE-2026-47328, CVE-2026-47329, CVE-2026-47330, CVE-2026-47332,

CVE-2026-47333, CVE-2026-47334, CVE-2026-47337, CVE-2026-52904,

CVE-2026-52905, CVE-2026-52906, CVE-2026-52907, CVE-2026-52911,

CVE-2026-52912, CVE-2026-52913, CVE-2026-52914, CVE-2026-52915,

CVE-2026-52916, CVE-2026-52918, CVE-2026-52919, CVE-2026-52920,

CVE-2026-52921, CVE-2026-52922, CVE-2026-52923, CVE-2026-52925,

CVE-2026-52926, CVE-2026-52927, CVE-2026-52928, CVE-2026-52931,

CVE-2026-52932, CVE-2026-52933, CVE-2026-52934, CVE-2026-52936,

CVE-2026-52937, CVE-2026-52941, CVE-2026-52943, CVE-2026-52944,

CVE-2026-52949, CVE-2026-52950, CVE-2026-52951, CVE-2026-52952,

CVE-2026-52953, CVE-2026-52954, CVE-2026-52955, CVE-2026-52956,

CVE-2026-52957, CVE-2026-52958, CVE-2026-52959, CVE-2026-52960,

CVE-2026-52961, CVE-2026-52962, CVE-2026-52963, CVE-2026-52964,

CVE-2026-52965, CVE-2026-52967, CVE-2026-52968, CVE-2026-52969,

CVE-2026-52970, CVE-2026-52971, CVE-2026-52973, CVE-2026-52974,

CVE-2026-52975, CVE-2026-52976, CVE-2026-52977, CVE-2026-52978,

CVE-2026-52979, CVE-2026-52980, CVE-2026-52981, CVE-2026-52982,

CVE-2026-52983, CVE-2026-52984, CVE-2026-52985, CVE-2026-52986,

CVE-2026-52987, CVE-2026-52988, CVE-2026-52989, CVE-2026-52990,

CVE-2026-52991, CVE-2026-52992, CVE-2026-52993, CVE-2026-52994,

CVE-2026-52995, CVE-2026-52996, CVE-2026-52997, CVE-2026-52998,

CVE-2026-52999, CVE-2026-53000, CVE-2026-53001, CVE-2026-53002,

CVE-2026-53003, CVE-2026-53004, CVE-2026-53005, CVE-2026-53006,

CVE-2026-53007, CVE-2026-53008, CVE-2026-53009, CVE-2026-53010,

CVE-2026-53011, CVE-2026-53012, CVE-2026-53013, CVE-2026-53014,

CVE-2026-53015, CVE-2026-53016, CVE-2026-53017, CVE-2026-53018,

CVE-2026-53019, CVE-2026-53020, CVE-2026-53021, CVE-2026-53022,

CVE-2026-53023, CVE-2026-53024, CVE-2026-53025, CVE-2026-53026,

CVE-2026-53027, CVE-2026-53028, CVE-2026-53029, CVE-2026-53030,

CVE-2026-53031, CVE-2026-53032, CVE-2026-53033, CVE-2026-53034,

CVE-2026-53035, CVE-2026-53036, CVE-2026-53037, CVE-2026-53038,

CVE-2026-53039, CVE-2026-53040, CVE-2026-53041, CVE-2026-53042,

CVE-2026-53043, CVE-2026-53044, CVE-2026-53045, CVE-2026-53046,

CVE-2026-53047, CVE-2026-53048, CVE-2026-53049, CVE-2026-53050,

CVE-2026-53051, CVE-2026-53052, CVE-2026-53053, CVE-2026-53054,

CVE-2026-53055, CVE-2026-53056, CVE-2026-53057, CVE-2026-53058,

CVE-2026-53059, CVE-2026-53060, CVE-2026-53061, CVE-2026-53062,

CVE-2026-53063, CVE-2026-53064, CVE-2026-53065, CVE-2026-53066,

CVE-2026-53067, CVE-2026-53068, CVE-2026-53069, CVE-2026-53070,

CVE-2026-53071, CVE-2026-53072, CVE-2026-53073, CVE-2026-53074,

CVE-2026-53075, CVE-2026-53076, CVE-2026-53077, CVE-2026-53078,

CVE-2026-53079, CVE-2026-53080, CVE-2026-53081, CVE-2026-53082,

CVE-2026-53083, CVE-2026-53084, CVE-2026-53085, CVE-2026-53086,

CVE-2026-53087, CVE-2026-53088, CVE-2026-53089, CVE-2026-53090,

CVE-2026-53091, CVE-2026-53092, CVE-2026-53093, CVE-2026-53094,

CVE-2026-53095, CVE-2026-53096, CVE-2026-53097, CVE-2026-53098,

CVE-2026-53099, CVE-2026-53100, CVE-2026-53101, CVE-2026-53102,

CVE-2026-53103, CVE-2026-53104, CVE-2026-53105, CVE-2026-53106,

CVE-2026-53107, CVE-2026-53108, CVE-2026-53109, CVE-2026-53110,

CVE-2026-53111, CVE-2026-53112, CVE-2026-53113, CVE-2026-53114,

CVE-2026-53115, CVE-2026-53116, CVE-2026-53117, CVE-2026-53118,

CVE-2026-53119, CVE-2026-53120, CVE-2026-53121, CVE-2026-53122,

CVE-2026-53123, CVE-2026-53124, CVE-2026-53125, CVE-2026-53126,

CVE-2026-53127, CVE-2026-53128, CVE-2026-53129, CVE-2026-53130,

CVE-2026-53174, CVE-2026-53277, CVE-2026-53278, CVE-2026-53279,

CVE-2026-53280, CVE-2026-53281, CVE-2026-53282, CVE-2026-53283,

CVE-2026-53284, CVE-2026-53285, CVE-2026-53286, CVE-2026-53287,

CVE-2026-53288, CVE-2026-53289, CVE-2026-53290, CVE-2026-53291,

CVE-2026-53292, CVE-2026-53293, CVE-2026-53294, CVE-2026-53295,

CVE-2026-53296, CVE-2026-53297, CVE-2026-53298, CVE-2026-53299,

CVE-2026-53300, CVE-2026-53301, CVE-2026-53302, CVE-2026-53303,

CVE-2026-53304, CVE-2026-53305, CVE-2026-53306, CVE-2026-53307,

CVE-2026-53308, CVE-2026-53309, CVE-2026-53310, CVE-2026-53311,

CVE-2026-53312, CVE-2026-53313, CVE-2026-53314, CVE-2026-53315,

CVE-2026-53316, CVE-2026-53317, CVE-2026-53318, CVE-2026-53319,

CVE-2026-53320, CVE-2026-53321, CVE-2026-53322, CVE-2026-53323,

CVE-2026-53324, CVE-2026-53357, CVE-2026-53358, CVE-2026-53360,

CVE-2026-53364, CVE-2026-53365

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-8569-1

Topics%20covered

Topics Covered

security advisory critical privilege escalation Ubuntu memory leak kernel

Package Information

https://launchpad.net/ubuntu/+source/linux-hwe-7.0/7.0.0-28.28~24.04.1

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