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Ubuntu 24.04 LTS USN-7879-2: Linux Kernel Critical Local Access Threats

Ubuntu 24.04 LTS USN-7879-2: Linux Kernel Critical Local Access Threats

Linuxsecurity LinuxSecurity Advisories November 21, 2025

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 24.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-realtime-6.14: Linux kernel for Real-time systems 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) 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: - ARM64 architecture; - PowerPC architecture; - S390 architecture; - x86 architecture; - Network block device driver; - Character device driver; - Clock framework and drivers; - Data acquisition framework and drivers; - Hardware crypto device drivers; - Device frequency scaling framework; - DMA engine subsystem; - EDAC drivers;

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 24.04 LTS Summary: Several security issues were fixed in the Linux kernel. Software Description: - linux-realtime-6.14: Linux kernel for Real-time systems 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) 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: - ARM64 architecture; - PowerPC architecture; - S390 architecture; - x86 architecture; - Network block device driver; - Character device driver; - Clock framework and drivers; - Data acquisition framework and drivers; - Hardware crypto device drivers; - Device frequency scaling framework; - DMA engine subsystem; - EDAC drivers;

The problem can be corrected by updating your system to the following package versions: Ubuntu 24.04 LTS linux-image-6.14.0-1016-realtime 6.14.0-1016.16~24.04.1 Available with Ubuntu Pro linux-image-realtime-6.14 6.14.0-1016.16~24.04.1 Available with Ubuntu Pro linux-image-realtime-hwe-24.04 6.14.0-1016.16~24.04.1 Available with Ubuntu Pro 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.

The problem can be corrected by updating your system to the following package versions: Ubuntu 24.04 LTS linux-image-6.14.0-1016-realtime 6.14.0-1016.16~24.04.1 Available with Ubuntu Pro linux-image-realtime-6.14 6.14.0-1016.16~24.04.1 Available with Ubuntu Pro linux-image-realtime-hwe-24.04 6.14.0-1016.16~24.04.1 Available with Ubuntu Pro 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.

CVE-2024-36331, CVE-2025-38335, CVE-2025-38349, CVE-2025-38351, CVE-2025-38437, CVE-2025-38438, CVE-2025-38439, CVE-2025-38440, CVE-2025-38441, CVE-2025-38443, CVE-2025-38444, CVE-2025-38445, CVE-2025-38446, CVE-2025-38448, CVE-2025-38449, CVE-2025-38450, CVE-2025-38451, CVE-2025-38452, CVE-2025-38453, CVE-2025-38454, 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-2025-38475, CVE-2025-38476, CVE-2025-38478, CVE-2025-38480, CVE-2025-38481, CVE-2025-38482, CVE-2025-38483, CVE-2025-38484, CVE-2025-38485, CVE-2025-38487, CVE-2025-38488, CVE-2025-38489, CVE-2025-38490, CVE-2025-38491, CVE-2025-38492, CVE-2025-38493, CVE-2025-38494, CVE-2025-38495, CVE-2025-38496, CVE-2025-38497, CVE-2025-38501, CVE-2025-38503, CVE-2025-38505, CVE-2025-38506, CVE-2025-38507, CVE-2025-38508, CVE-2025-38509, CVE-2025-38510, CVE-2025-38511, CVE-2025-38512, CVE-2025-38513, CVE-2025-38514, CVE-2025-38515, CVE-2025-38516, CVE-2025-38517, CVE-2025-38520, CVE-2025-38521, CVE-2025-38524, CVE-2025-38525, 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-2025-38534, 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-2025-38545, CVE-2025-38546, CVE-2025-38547, CVE-2025-38548, CVE-2025-38549, CVE-2025-38550, CVE-2025-38551, CVE-2025-38552, CVE-2025-38553, CVE-2025-38555, CVE-2025-38556, CVE-2025-38557, CVE-2025-38558, CVE-2025-38559, CVE-2025-38560, CVE-2025-38561, CVE-2025-38562, CVE-2025-38563, CVE-2025-38565, CVE-2025-38566, CVE-2025-38567, CVE-2025-38568, CVE-2025-38569, CVE-2025-38570, CVE-2025-38571, CVE-2025-38572, CVE-2025-38573, 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-2025-38586, CVE-2025-38587, CVE-2025-38588, CVE-2025-38589, CVE-2025-38590, CVE-2025-38593, CVE-2025-38595, CVE-2025-38601, CVE-2025-38602, CVE-2025-38604, CVE-2025-38605, CVE-2025-38606, CVE-2025-38608, CVE-2025-38609, CVE-2025-38610, CVE-2025-38612, CVE-2025-38615, CVE-2025-38616, CVE-2025-38619, CVE-2025-38622, CVE-2025-38623, CVE-2025-38624, CVE-2025-38625, CVE-2025-38626, CVE-2025-38628, CVE-2025-38629, CVE-2025-38630, CVE-2025-38631, CVE-2025-38632, CVE-2025-38634, CVE-2025-38635, CVE-2025-38639, CVE-2025-38640, CVE-2025-38642, CVE-2025-38643, CVE-2025-38644, CVE-2025-38645, CVE-2025-38646, CVE-2025-38648, CVE-2025-38649, CVE-2025-38650, CVE-2025-38652, CVE-2025-38653, CVE-2025-38654, CVE-2025-38655, CVE-2025-38659, CVE-2025-38660, CVE-2025-38662, CVE-2025-38663, CVE-2025-38664, CVE-2025-38665, CVE-2025-38666, CVE-2025-38668, CVE-2025-38670, CVE-2025-38671, CVE-2025-38675, CVE-2025-38678, CVE-2025-39725, CVE-2025-39726, CVE-2025-39727, CVE-2025-39730, CVE-2025-39731, CVE-2025-39732, CVE-2025-39734, CVE-2025-39809, CVE-2025-39818, CVE-2025-40157

CVE-2024-36331, CVE-2025-38335, CVE-2025-38349, CVE-2025-38351,

CVE-2025-38437, CVE-2025-38438, CVE-2025-38439, CVE-2025-38440,

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

CVE-2025-38446, CVE-2025-38448, CVE-2025-38449, CVE-2025-38450,

CVE-2025-38451, CVE-2025-38452, CVE-2025-38453, CVE-2025-38454,

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-2025-38475, CVE-2025-38476, CVE-2025-38478, CVE-2025-38480,

CVE-2025-38481, CVE-2025-38482, CVE-2025-38483, CVE-2025-38484,

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

CVE-2025-38490, CVE-2025-38491, CVE-2025-38492, CVE-2025-38493,

CVE-2025-38494, CVE-2025-38495, CVE-2025-38496, CVE-2025-38497,

CVE-2025-38501, CVE-2025-38503, CVE-2025-38505, CVE-2025-38506,

CVE-2025-38507, CVE-2025-38508, CVE-2025-38509, CVE-2025-38510,

CVE-2025-38511, CVE-2025-38512, CVE-2025-38513, CVE-2025-38514,

CVE-2025-38515, CVE-2025-38516, CVE-2025-38517, CVE-2025-38520,

CVE-2025-38521, CVE-2025-38524, CVE-2025-38525, 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-2025-38534,

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-2025-38545, CVE-2025-38546, CVE-2025-38547, CVE-2025-38548,

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

CVE-2025-38553, CVE-2025-38555, CVE-2025-38556, CVE-2025-38557,

CVE-2025-38558, CVE-2025-38559, CVE-2025-38560, CVE-2025-38561,

CVE-2025-38562, CVE-2025-38563, CVE-2025-38565, CVE-2025-38566,

CVE-2025-38567, CVE-2025-38568, CVE-2025-38569, CVE-2025-38570,

CVE-2025-38571, CVE-2025-38572, CVE-2025-38573, 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-2025-38586, CVE-2025-38587, CVE-2025-38588,

CVE-2025-38589, CVE-2025-38590, CVE-2025-38593, CVE-2025-38595,

CVE-2025-38601, CVE-2025-38602, CVE-2025-38604, CVE-2025-38605,

CVE-2025-38606, CVE-2025-38608, CVE-2025-38609, CVE-2025-38610,

CVE-2025-38612, CVE-2025-38615, CVE-2025-38616, CVE-2025-38619,

CVE-2025-38622, CVE-2025-38623, CVE-2025-38624, CVE-2025-38625,

CVE-2025-38626, CVE-2025-38628, CVE-2025-38629, CVE-2025-38630,

CVE-2025-38631, CVE-2025-38632, CVE-2025-38634, CVE-2025-38635,

CVE-2025-38639, CVE-2025-38640, CVE-2025-38642, CVE-2025-38643,

CVE-2025-38644, CVE-2025-38645, CVE-2025-38646, CVE-2025-38648,

CVE-2025-38649, CVE-2025-38650, CVE-2025-38652, CVE-2025-38653,

CVE-2025-38654, CVE-2025-38655, CVE-2025-38659, CVE-2025-38660,

CVE-2025-38662, CVE-2025-38663, CVE-2025-38664, CVE-2025-38665,

CVE-2025-38666, CVE-2025-38668, CVE-2025-38670, CVE-2025-38671,

CVE-2025-38675, CVE-2025-38678, CVE-2025-39725, CVE-2025-39726,

CVE-2025-39727, CVE-2025-39730, CVE-2025-39731, CVE-2025-39732,

CVE-2025-39734, CVE-2025-39809, CVE-2025-39818, CVE-2025-40157

Extracted Entities

Companies (1)

CVEs (200)

CVE-2024-36331CVE-2025-38335CVE-2025-38349CVE-2025-38351CVE-2025-38437CVE-2025-38438CVE-2025-38439CVE-2025-38440CVE-2025-38441CVE-2025-38443CVE-2025-38444CVE-2025-38445CVE-2025-38446CVE-2025-38448CVE-2025-38449CVE-2025-38450CVE-2025-38451CVE-2025-38452CVE-2025-38453CVE-2025-38454CVE-2025-38455CVE-2025-38456CVE-2025-38457CVE-2025-38458CVE-2025-38459CVE-2025-38460CVE-2025-38461CVE-2025-38462CVE-2025-38463CVE-2025-38464CVE-2025-38465CVE-2025-38466CVE-2025-38467CVE-2025-38468CVE-2025-38469CVE-2025-38470CVE-2025-38471CVE-2025-38472CVE-2025-38473CVE-2025-38474CVE-2025-38475CVE-2025-38476CVE-2025-38478CVE-2025-38480CVE-2025-38481CVE-2025-38482CVE-2025-38483CVE-2025-38484CVE-2025-38485CVE-2025-38487CVE-2025-38488CVE-2025-38489CVE-2025-38490CVE-2025-38491CVE-2025-38492CVE-2025-38493CVE-2025-38494CVE-2025-38495CVE-2025-38496CVE-2025-38497CVE-2025-38501CVE-2025-38503CVE-2025-38505CVE-2025-38506CVE-2025-38507CVE-2025-38508CVE-2025-38509CVE-2025-38510CVE-2025-38511CVE-2025-38512CVE-2025-38513CVE-2025-38514CVE-2025-38515CVE-2025-38516CVE-2025-38517CVE-2025-38520CVE-2025-38521CVE-2025-38524CVE-2025-38525CVE-2025-38526CVE-2025-38527CVE-2025-38528CVE-2025-38529CVE-2025-38530CVE-2025-38531CVE-2025-38532CVE-2025-38533CVE-2025-38534CVE-2025-38535CVE-2025-38537CVE-2025-38538CVE-2025-38539CVE-2025-38540CVE-2025-38542CVE-2025-38543CVE-2025-38544CVE-2025-38545CVE-2025-38546CVE-2025-38547CVE-2025-38548CVE-2025-38549CVE-2025-38550CVE-2025-38551CVE-2025-38552CVE-2025-38553CVE-2025-38555CVE-2025-38556CVE-2025-38557CVE-2025-38558CVE-2025-38559CVE-2025-38560CVE-2025-38561CVE-2025-38562CVE-2025-38563CVE-2025-38565CVE-2025-38566CVE-2025-38567CVE-2025-38568CVE-2025-38569CVE-2025-38570CVE-2025-38571CVE-2025-38572CVE-2025-38573CVE-2025-38574CVE-2025-38576CVE-2025-38577CVE-2025-38578CVE-2025-38579CVE-2025-38581CVE-2025-38582CVE-2025-38583CVE-2025-38584CVE-2025-38585CVE-2025-38586CVE-2025-38587CVE-2025-38588CVE-2025-38589CVE-2025-38590CVE-2025-38593CVE-2025-38595CVE-2025-38601CVE-2025-38602CVE-2025-38604CVE-2025-38605CVE-2025-38606CVE-2025-38608CVE-2025-38609CVE-2025-38610CVE-2025-38612CVE-2025-38615CVE-2025-38616CVE-2025-38619CVE-2025-38622CVE-2025-38623CVE-2025-38624CVE-2025-38625CVE-2025-38626CVE-2025-38628CVE-2025-38629CVE-2025-38630CVE-2025-38631CVE-2025-38632CVE-2025-38634CVE-2025-38635CVE-2025-38639CVE-2025-38640CVE-2025-38642CVE-2025-38643CVE-2025-38644CVE-2025-38645CVE-2025-38646CVE-2025-38648CVE-2025-38649CVE-2025-38650CVE-2025-38652CVE-2025-38653CVE-2025-38654CVE-2025-38655CVE-2025-38659CVE-2025-38660CVE-2025-38662CVE-2025-38663CVE-2025-38664CVE-2025-38665CVE-2025-38666CVE-2025-38668CVE-2025-38670CVE-2025-38671CVE-2025-38675CVE-2025-38678CVE-2025-39725CVE-2025-39726CVE-2025-39727CVE-2025-39730CVE-2025-39731CVE-2025-39732CVE-2025-39734CVE-2025-39809CVE-2025-39818CVE-2025-40157

Platforms (2)