Ubuntu 22.04 LTS Linux HWE Critical Security Flaws USN-8028-6

ubuntu

February 19, 2026

Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-hwe-6.8: Linux hardware enablement (HWE) kernel

- linux-lowlatency-hwe-6.8: Linux low latency kernel

Details:

It was discovered that improper initialization of CPU cache memory could

allow a local attacker with hypervisor access to overwrite SEV-SNP guest

memory resulting in loss of data integrity. (CVE-2024-36331)

Oleksii Oleksenko, Cedric Fournet, Jana Hofmann, Boris Köpf, Stavros Volos,

and Flavien Solt discovered that some AMD processors may allow an attacker

to infer data from previous stores, potentially resulting in the leakage of

privileged information. A local attacker could possibly use this to expose

sensitive information. (CVE-2024-36350, CVE-2024-36357)

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:

- ARM32 architecture;

- ARM64 architecture;

...

Read the Full Advisory

Topics Covered

security advisory critical Ubuntu local attack data integrity linux hwe

Update Instructions

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

Ubuntu 22.04 LTS
  linux-image-6.8.0-100-generic   6.8.0-100.100~22.04.1
  linux-image-6.8.0-100-generic-64k  6.8.0-100.100~22.04.1
  linux-image-6.8.0-100-lowlatency  6.8.0-100.100.1~22.04.1
  linux-image-6.8.0-100-lowlatency-64k  6.8.0-100.100.1~22.04.1
  linux-image-generic-6.8         6.8.0-100.100~22.04.1
  linux-image-generic-64k-6.8     6.8.0-100.100~22.04.1
  linux-image-generic-64k-hwe-22.04  6.8.0-100.100~22.04.1
  linux-image-generic-hwe-22.04   6.8.0-100.100~22.04.1
  linux-image-lowlatency-6.8      6.8.0-100.100.1~22.04.1
  linux-image-lowlatency-64k-6.8  6.8.0-100.100.1~22.04.1
  linux-image-lowlatency-64k-hwe-22.04  6.8.0-100.100.1~22.04.1
  linux-image-lowlatency-hwe-22.04  6.8.0-100.100.1~22.04.1
  linux-image-oem-22.04           6.8.0-100.100~22.04.1
  linux-image-oem-22.04a          6.8.0-100.100~22.04.1
  linux-image-oem-22.04b          6.8.0-100.100~22.04.1
  linux-image-oem-22.04c          6.8.0-100.100~22.04.1
  linux-image-oem-22.04d          6.8.0-100.100~22.04.1
  linux-image-virtual-6.8         6.8.0-100.100~22.04.1
  linux-image-virtual-hwe-22.04   6.8.0-100.100~22.04.1

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-8028-6

https://ubuntu.com/security/notices/USN-8028-5

https://ubuntu.com/security/notices/USN-8028-4

https://ubuntu.com/security/notices/USN-8028-3

https://ubuntu.com/security/notices/USN-8028-2

https://ubuntu.com/security/notices/USN-8028-1

CVE-2024-36331, CVE-2024-36350, CVE-2024-36357, CVE-2025-21884,

CVE-2025-21931, CVE-2025-22026, CVE-2025-22101, CVE-2025-22102,

CVE-2025-22115, CVE-2025-22120, CVE-2025-22126, CVE-2025-22128,

CVE-2025-23140, CVE-2025-23141, CVE-2025-23142, CVE-2025-23144,

CVE-2025-23145, CVE-2025-23146, CVE-2025-23147, CVE-2025-23148,

CVE-2025-23149, CVE-2025-23150, CVE-2025-23151, CVE-2025-23155,

CVE-2025-23156, CVE-2025-23157, CVE-2025-23158, CVE-2025-23159,

CVE-2025-23160, CVE-2025-23161, CVE-2025-23163, CVE-2025-37738,

CVE-2025-37739, CVE-2025-37740, CVE-2025-37741, CVE-2025-37742,

CVE-2025-37744, CVE-2025-37745, CVE-2025-37748, CVE-2025-37749,

CVE-2025-37754, CVE-2025-37755, CVE-2025-37757, CVE-2025-37758,

CVE-2025-37759, CVE-2025-37761, CVE-2025-37763, CVE-2025-37764,

CVE-2025-37765, CVE-2025-37766, CVE-2025-37767, CVE-2025-37768,

CVE-2025-37769, CVE-2025-37770, CVE-2025-37771, CVE-2025-37772,

CVE-2025-37773, CVE-2025-37775, CVE-2025-37777, CVE-2025-37778,

CVE-2025-37780, CVE-2025-37781, CVE-2025-37784, CVE-2025-37786,

CVE-2025-37787, CVE-2025-37788, CVE-2025-37789, CVE-2025-37790,

CVE-2025-37792, CVE-2025-37793, CVE-2025-37794, CVE-2025-37796,

CVE-2025-37799, CVE-2025-37800, CVE-2025-37801, CVE-2025-37803,

CVE-2025-37805, CVE-2025-37808, CVE-2025-37809, CVE-2025-37810,

CVE-2025-37811, CVE-2025-37812, CVE-2025-37813, CVE-2025-37815,

CVE-2025-37816, CVE-2025-37817, CVE-2025-37819, CVE-2025-37820,

CVE-2025-37822, CVE-2025-37823, CVE-2025-37824, CVE-2025-37826,

CVE-2025-37827, CVE-2025-37828, CVE-2025-37829, CVE-2025-37830,

CVE-2025-37831, CVE-2025-37836, CVE-2025-37839, CVE-2025-37840,

CVE-2025-37841, CVE-2025-37842, CVE-2025-37844, CVE-2025-37846,

CVE-2025-37849, CVE-2025-37850, CVE-2025-37851, CVE-2025-37852,

CVE-2025-37853, CVE-2025-37854, CVE-2025-37856, CVE-2025-37857,

CVE-2025-37858, CVE-2025-37859, CVE-2025-37861, CVE-2025-37862,

CVE-2025-37863, CVE-2025-37864, CVE-2025-37865, CVE-2025-37867,

CVE-2025-37869, CVE-2025-37871, CVE-2025-37872, CVE-2025-37873,

CVE-2025-37874, CVE-2025-37875, CVE-2025-37878, CVE-2025-37879,

CVE-2025-37881, CVE-2025-37883, CVE-2025-37884, CVE-2025-37885,

CVE-2025-37886, CVE-2025-37887, CVE-2025-37891, CVE-2025-37892,

CVE-2025-37897, CVE-2025-37900, CVE-2025-37901, CVE-2025-37903,

CVE-2025-37905, CVE-2025-37909, CVE-2025-37911, CVE-2025-37912,

CVE-2025-37913, CVE-2025-37914, CVE-2025-37915, CVE-2025-37916,

CVE-2025-37917, CVE-2025-37918, CVE-2025-37920, CVE-2025-37921,

CVE-2025-37922, CVE-2025-37923, CVE-2025-37924, CVE-2025-37925,

CVE-2025-37927, CVE-2025-37928, CVE-2025-37930, CVE-2025-37931,

CVE-2025-37933, CVE-2025-37935, CVE-2025-37936, CVE-2025-37938,

CVE-2025-37940, CVE-2025-37943, CVE-2025-37944, CVE-2025-37945,

CVE-2025-37947, CVE-2025-37948, CVE-2025-37949, CVE-2025-37951,

CVE-2025-37952, CVE-2025-37954, CVE-2025-37956, CVE-2025-37957,

CVE-2025-37959, CVE-2025-37960, CVE-2025-37961, CVE-2025-37962,

CVE-2025-37963, CVE-2025-37967, CVE-2025-37968, CVE-2025-37969,

CVE-2025-37970, CVE-2025-37972, CVE-2025-37973, CVE-2025-37975,

CVE-2025-37977, CVE-2025-37978, CVE-2025-37979, CVE-2025-37980,

CVE-2025-37982, CVE-2025-37983, CVE-2025-37984, CVE-2025-37985,

CVE-2025-37986, CVE-2025-37987, CVE-2025-37988, CVE-2025-37989,

CVE-2025-37990, CVE-2025-37991, CVE-2025-37992, CVE-2025-37994,

CVE-2025-37995, CVE-2025-37998, CVE-2025-38003, CVE-2025-38004,

CVE-2025-38005, CVE-2025-38006, CVE-2025-38007, CVE-2025-38008,

CVE-2025-38009, CVE-2025-38010, CVE-2025-38011, CVE-2025-38013,

CVE-2025-38014, CVE-2025-38015, CVE-2025-38018, CVE-2025-38019,

CVE-2025-38020, CVE-2025-38023, CVE-2025-38024, CVE-2025-38027,

CVE-2025-38031, CVE-2025-38034, CVE-2025-38035, CVE-2025-38037,

CVE-2025-38039, CVE-2025-38040, CVE-2025-38043, CVE-2025-38044,

CVE-2025-38045, CVE-2025-38048, CVE-2025-38051, CVE-2025-38052,

CVE-2025-38053, CVE-2025-38055, CVE-2025-38057, CVE-2025-38058,

CVE-2025-38059, CVE-2025-38060, CVE-2025-38061, CVE-2025-38062,

CVE-2025-38063, CVE-2025-38065, CVE-2025-38066, CVE-2025-38067,

CVE-2025-38068, CVE-2025-38071, CVE-2025-38072, CVE-2025-38074,

CVE-2025-38075, CVE-2025-38077, CVE-2025-38078, CVE-2025-38079,

CVE-2025-38080, CVE-2025-38081, CVE-2025-38084, CVE-2025-38085,

CVE-2025-38086, CVE-2025-38087, CVE-2025-38088, CVE-2025-38089,

CVE-2025-38090, CVE-2025-38094, CVE-2025-38095, CVE-2025-38097,

CVE-2025-38098, CVE-2025-38099, CVE-2025-38100, CVE-2025-38101,

CVE-2025-38102, CVE-2025-38103, CVE-2025-38104, CVE-2025-38107,

CVE-2025-38108, CVE-2025-38109, CVE-2025-38110, CVE-2025-38111,

CVE-2025-38112, CVE-2025-38113, CVE-2025-38115, CVE-2025-38117,

CVE-2025-38119, CVE-2025-38120, CVE-2025-38122, CVE-2025-38123,

CVE-2025-38124, CVE-2025-38125, CVE-2025-38126, CVE-2025-38127,

CVE-2025-38129, CVE-2025-38131, CVE-2025-38135, CVE-2025-38136,

CVE-2025-38138, CVE-2025-38142, CVE-2025-38143, CVE-2025-38145,

CVE-2025-38146, CVE-2025-38147, CVE-2025-38148, CVE-2025-38149,

CVE-2025-38153, CVE-2025-38154, CVE-2025-38155, CVE-2025-38156,

CVE-2025-38157, CVE-2025-38158, CVE-2025-38159, CVE-2025-38160,

CVE-2025-38161, CVE-2025-38162, CVE-2025-38163, CVE-2025-38164,

CVE-2025-38165, CVE-2025-38166, CVE-2025-38167, CVE-2025-38169,

CVE-2025-38170, CVE-2025-38173, CVE-2025-38174, CVE-2025-38180,

CVE-2025-38181, CVE-2025-38182, CVE-2025-38183, CVE-2025-38184,

CVE-2025-38185, CVE-2025-38190, CVE-2025-38191, CVE-2025-38192,

CVE-2025-38193, CVE-2025-38194, CVE-2025-38197, CVE-2025-38198,

CVE-2025-38200, CVE-2025-38202, CVE-2025-38208, CVE-2025-38210,

CVE-2025-38211, CVE-2025-38212, CVE-2025-38214, CVE-2025-38215,

CVE-2025-38217, CVE-2025-38218, CVE-2025-38219, CVE-2025-38220,

CVE-2025-38222, CVE-2025-38225, CVE-2025-38226, CVE-2025-38229,

CVE-2025-38230, CVE-2025-38231, CVE-2025-38232, CVE-2025-38236,

CVE-2025-38239, CVE-2025-38244, CVE-2025-38245, CVE-2025-38246,

CVE-2025-38248, CVE-2025-38249, CVE-2025-38250, CVE-2025-38251,

CVE-2025-38253, CVE-2025-38255, CVE-2025-38257, CVE-2025-38258,

CVE-2025-38259, CVE-2025-38260, CVE-2025-38262, CVE-2025-38263,

CVE-2025-38264, CVE-2025-38265, CVE-2025-38269, CVE-2025-38274,

CVE-2025-38275, CVE-2025-38277, CVE-2025-38278, CVE-2025-38279,

CVE-2025-38280, CVE-2025-38282, CVE-2025-38283, CVE-2025-38285,

CVE-2025-38286, CVE-2025-38289, CVE-2025-38290, CVE-2025-38292,

CVE-2025-38293, CVE-2025-38295, CVE-2025-38298, CVE-2025-38299,

CVE-2025-38300, CVE-2025-38303, CVE-2025-38304, CVE-2025-38305,

CVE-2025-38307, CVE-2025-38310, CVE-2025-38312, CVE-2025-38313,

CVE-2025-38319, CVE-2025-38320, CVE-2025-38321, CVE-2025-38322,

CVE-2025-38323, CVE-2025-38324, CVE-2025-38326, CVE-2025-38328,

CVE-2025-38331, CVE-2025-38332, CVE-2025-38333, CVE-2025-38334,

CVE-2025-38335, CVE-2025-38336, CVE-2025-38337, CVE-2025-38338,

CVE-2025-38342, CVE-2025-38343, CVE-2025-38344, CVE-2025-38345,

CVE-2025-38346, CVE-2025-38347, CVE-2025-38348, CVE-2025-38349,

CVE-2025-38351, CVE-2025-38354, CVE-2025-38361, CVE-2025-38362,

CVE-2025-38363, CVE-2025-38364, CVE-2025-38365, CVE-2025-38368,

CVE-2025-38369, CVE-2025-38371, CVE-2025-38373, CVE-2025-38374,

CVE-2025-38375, CVE-2025-38376, CVE-2025-38377, CVE-2025-38382,

CVE-2025-38384, CVE-2025-38385, CVE-2025-38386, CVE-2025-38387,

CVE-2025-38388, CVE-2025-38389, CVE-2025-38390, CVE-2025-38391,

CVE-2025-38392, CVE-2025-38393, CVE-2025-38395, CVE-2025-38396,

CVE-2025-38399, CVE-2025-38400, CVE-2025-38401, CVE-2025-38402,

CVE-2025-38403, CVE-2025-38405, CVE-2025-38406, CVE-2025-38407,

CVE-2025-38408, CVE-2025-38409, CVE-2025-38410, CVE-2025-38412,

CVE-2025-38414, CVE-2025-38415, CVE-2025-38416, CVE-2025-38418,

CVE-2025-38419, CVE-2025-38420, CVE-2025-38422, CVE-2025-38424,

CVE-2025-38425, CVE-2025-38427, CVE-2025-38428, CVE-2025-38429,

CVE-2025-38430, CVE-2025-38436, CVE-2025-38437, CVE-2025-38439,

CVE-2025-38441, CVE-2025-38443, CVE-2025-38444, CVE-2025-38445,

CVE-2025-38448, CVE-2025-38449, CVE-2025-38455, CVE-2025-38456,

CVE-2025-38457, CVE-2025-38458, CVE-2025-38459, CVE-2025-38460,

CVE-2025-38461, CVE-2025-38462, CVE-2025-38463, CVE-2025-38464,

CVE-2025-38465, CVE-2025-38466, CVE-2025-38467, CVE-2025-38468,

CVE-2025-38469, CVE-2025-38470, CVE-2025-38471, CVE-2025-38472,

CVE-2025-38473, CVE-2025-38474, CVE-2025-38476, CVE-2025-38478,

CVE-2025-38480, CVE-2025-38481, CVE-2025-38482, CVE-2025-38483,

CVE-2025-38485, CVE-2025-38487, CVE-2025-38488, CVE-2025-38489,

CVE-2025-38490, CVE-2025-38491, CVE-2025-38493, CVE-2025-38494,

CVE-2025-38495, CVE-2025-38496, CVE-2025-38497, CVE-2025-38499,

CVE-2025-38501, CVE-2025-38503, CVE-2025-38506, CVE-2025-38507,

CVE-2025-38510, CVE-2025-38511, CVE-2025-38512, CVE-2025-38513,

CVE-2025-38514, CVE-2025-38515, CVE-2025-38516, CVE-2025-38520,

CVE-2025-38521, CVE-2025-38524, CVE-2025-38526, CVE-2025-38527,

CVE-2025-38528, CVE-2025-38529, CVE-2025-38530, CVE-2025-38531,

CVE-2025-38532, CVE-2025-38533, CVE-2025-38535, CVE-2025-38537,

CVE-2025-38538, CVE-2025-38539, CVE-2025-38540, CVE-2025-38542,

CVE-2025-38543, CVE-2025-38544, CVE-2025-38546, CVE-2025-38548,

CVE-2025-38549, CVE-2025-38550, CVE-2025-38551, CVE-2025-38552,

CVE-2025-38553, CVE-2025-38555, CVE-2025-38560, CVE-2025-38562,

CVE-2025-38566, CVE-2025-38568, CVE-2025-38569, CVE-2025-38571,

CVE-2025-38572, CVE-2025-38574, CVE-2025-38576, CVE-2025-38577,

CVE-2025-38578, CVE-2025-38579, CVE-2025-38581, CVE-2025-38582,

CVE-2025-38583, CVE-2025-38584, CVE-2025-38585, CVE-2025-38587,

CVE-2025-38588, CVE-2025-38590, CVE-2025-38593, CVE-2025-38595,

CVE-2025-38601, CVE-2025-38602, CVE-2025-38604, CVE-2025-38608,

CVE-2025-38609, CVE-2025-38610, CVE-2025-38612, CVE-2025-38614,

CVE-2025-38615, CVE-2025-38619, CVE-2025-38622, CVE-2025-38623,

CVE-2025-38624, CVE-2025-38625, CVE-2025-38626, CVE-2025-38630,

CVE-2025-38632, CVE-2025-38634, CVE-2025-38635, CVE-2025-38639,

CVE-2025-38640, CVE-2025-38644, CVE-2025-38645, CVE-2025-38646,

CVE-2025-38648, CVE-2025-38650, CVE-2025-38652, CVE-2025-38653,

CVE-2025-38659, CVE-2025-38660, CVE-2025-38663, CVE-2025-38664,

CVE-2025-38665, CVE-2025-38668, CVE-2025-38670, CVE-2025-38671,

CVE-2025-38675, CVE-2025-38676, CVE-2025-38677, CVE-2025-38679,

CVE-2025-38680, CVE-2025-38681, CVE-2025-38683, CVE-2025-38684,

CVE-2025-38685, CVE-2025-38686, CVE-2025-38687, CVE-2025-38688,

CVE-2025-38691, CVE-2025-38692, CVE-2025-38693, CVE-2025-38694,

CVE-2025-38695, CVE-2025-38696, CVE-2025-38697, CVE-2025-38698,

CVE-2025-38699, CVE-2025-38700, CVE-2025-38701, CVE-2025-38702,

CVE-2025-38703, CVE-2025-38704, CVE-2025-38705, CVE-2025-38706,

CVE-2025-38707, CVE-2025-38708, CVE-2025-38710, CVE-2025-38711,

CVE-2025-38712, CVE-2025-38713, CVE-2025-38714, CVE-2025-38715,

CVE-2025-38716, CVE-2025-38718, CVE-2025-38721, CVE-2025-38722,

CVE-2025-38724, CVE-2025-38725, CVE-2025-38728, CVE-2025-38729,

CVE-2025-38730, CVE-2025-38732, CVE-2025-38734, CVE-2025-38735,

CVE-2025-39673, CVE-2025-39675, CVE-2025-39676, CVE-2025-39679,

CVE-2025-39681, CVE-2025-39683, CVE-2025-39684, CVE-2025-39685,

CVE-2025-39686, CVE-2025-39687, CVE-2025-39689, CVE-2025-39691,

CVE-2025-39692, CVE-2025-39693, CVE-2025-39694, CVE-2025-39701,

CVE-2025-39702, CVE-2025-39703, CVE-2025-39705, CVE-2025-39706,

CVE-2025-39707, CVE-2025-39709, CVE-2025-39710, CVE-2025-39711,

CVE-2025-39712, CVE-2025-39713, CVE-2025-39714, CVE-2025-39715,

CVE-2025-39716, CVE-2025-39718, CVE-2025-39719, CVE-2025-39720,

CVE-2025-39721, CVE-2025-39724, CVE-2025-39726, CVE-2025-39730,

CVE-2025-39731, CVE-2025-39732, CVE-2025-39734, CVE-2025-39736,

CVE-2025-39737, CVE-2025-39738, CVE-2025-39739, CVE-2025-39742,

CVE-2025-39743, CVE-2025-39744, CVE-2025-39746, CVE-2025-39747,

CVE-2025-39748, CVE-2025-39749, CVE-2025-39750, CVE-2025-39752,

CVE-2025-39753, CVE-2025-39756, CVE-2025-39757, CVE-2025-39758,

CVE-2025-39759, CVE-2025-39760, CVE-2025-39761, CVE-2025-39763,

CVE-2025-39766, CVE-2025-39770, CVE-2025-39772, CVE-2025-39773,

CVE-2025-39776, CVE-2025-39779, CVE-2025-39781, CVE-2025-39782,

CVE-2025-39783, CVE-2025-39787, CVE-2025-39788, CVE-2025-39790,

CVE-2025-39794, CVE-2025-39795, CVE-2025-39797, CVE-2025-39798,

CVE-2025-39800, CVE-2025-39801, CVE-2025-39889, CVE-2025-39890,

CVE-2025-39946, CVE-2025-39989, CVE-2025-40215, CVE-2025-40297,

CVE-2025-68750

Severity

critical

Lowest

Low

Medium

High

Critical

Ubuntu Security Notice USN-8028-6

Topics Covered

security advisory critical Ubuntu local attack data integrity linux hwe

Package Information

https://launchpad.net/ubuntu/+source/linux-hwe-6.8/6.8.0-100.100~22.04.1

https://launchpad.net/ubuntu/+source/linux-lowlatency-hwe-6.8/6.8.0-100.100.1~22.04.1

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Ubuntu 22.04 LTS Linux HWE Critical Security Flaws USN-8028-6

Summary

Topics Covered

Update Instructions

References

Topics Covered

Package Information

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Ubuntu 22.04 LTS Linux HWE Critical Security Flaws USN-8028-6

Summary

Topics Covered

Update Instructions

References

Topics Covered

Package Information

Get the latest News and Insights

Related Articles

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