In the Linux kernel, the following vulnerability has been resolved: mm/shmem, swap: fix softlockup with mTHP swapin Following softlockup can be easily reproduced on my test machine with: echo always > /sys/kernel/mm/transparent_hugepage/hugepages-64kB/enabled swapon /dev/zram0 # zram0 is a 48G swap device mkdir -p /sys/fs/cgroup/memory/test echo 1G > /sys/fs/cgroup/test/memory.max echo $BASHPID > /sys/fs/cgroup/test/cgroup.procs while true; do dd if=/dev/zero of=/tmp/test.img bs=1M count=5120 cat /tmp/test.img > /dev/null rm /tmp/test.img done Then after a while: watchdog: BUG: soft lockup - CPU#0 stuck for 763s! [cat:5787] Modules linked in: zram virtiofs CPU: 0 UID: 0 PID: 5787 Comm: cat Kdump: loaded Tainted: G L 6.15.0.orig-gf3021d9246bc-dirty #118 PREEMPT(voluntary)· Tainted: [L]=SOFTLOCKUP Hardware name: Red Hat KVM/RHEL-AV, BIOS 0.0.0 02/06/2015 RIP: 0010:mpol_shared_policy_lookup+0xd/0x70 Code: e9 b8 b4 ff ff 31 c0 c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 0f 1f 44 00 00 41 54 55 53 <48> 8b 1f 48 85 db 74 41 4c 8d 67 08 48 89 fb 48 89 f5 4c 89 e7 e8 RSP: 0018:ffffc90002b1fc28 EFLAGS: 00000202 RAX: 00000000001c20ca RBX: 0000000000724e1e RCX: 0000000000000001 RDX: ffff888118e214c8 RSI: 0000000000057d42 RDI: ffff888118e21518 RBP: 000000000002bec8 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000bf4 R11: 0000000000000000 R12: 0000000000000001 R13: 00000000001c20ca R14: 00000000001c20ca R15: 0000000000000000 FS: 00007f03f995c740(0000) GS:ffff88a07ad9a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f03f98f1000 CR3: 0000000144626004 CR4: 0000000000770eb0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: <TASK> shmem_alloc_folio+0x31/0xc0 shmem_swapin_folio+0x309/0xcf0 ? filemap_get_entry+0x117/0x1e0 ? xas_load+0xd/0xb0 ? filemap_get_entry+0x101/0x1e0 shmem_get_folio_gfp+0x2ed/0x5b0 shmem_file_read_iter+0x7f/0x2e0 vfs_read+0x252/0x330 ksys_read+0x68/0xf0 do_syscall_64+0x4c/0x1c0 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7f03f9a46991 Code: 00 48 8b 15 81 14 10 00 f7 d8 64 89 02 b8 ff ff ff ff eb bd e8 20 ad 01 00 f3 0f 1e fa 80 3d 35 97 10 00 00 74 13 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 4f c3 66 0f 1f 44 00 00 55 48 89 e5 48 83 ec RSP: 002b:00007fff3c52bd28 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000000000040000 RCX: 00007f03f9a46991 RDX: 0000000000040000 RSI: 00007f03f98ba000 RDI: 0000000000000003 RBP: 00007fff3c52bd50 R08: 0000000000000000 R09: 00007f03f9b9a380 R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000040000 R13: 00007f03f98ba000 R14: 0000000000000003 R15: 0000000000000000 </TASK> The reason is simple, readahead brought some order 0 folio in swap cache, and the swapin mTHP folio being allocated is in conflict with it, so swapcache_prepare fails and causes shmem_swap_alloc_folio to return -EEXIST, and shmem simply retries again and again causing this loop. Fix it by applying a similar fix for anon mTHP swapin. The performance change is very slight, time of swapin 10g zero folios with shmem (test for 12 times): Before: 2.47s After: 2.48s [kasong@tencent.com: add comment]

The remote Ubuntu 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7856-1 advisory.

    Oleksii Oleksenko, Cedric Fournet, Jana Hofmann, Boris Kpf, 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:

    - ARM64 architecture;

    - PowerPC architecture;

    - RISC-V architecture;

    - S390 architecture;

    - x86 architecture;

    - ACPI drivers;

    - Serial ATA and Parallel ATA drivers;

    - ATM drivers;

    - Drivers core;

    - ATA over ethernet (AOE) driver;

    - Ublk userspace block driver;

    - Bus devices;

    - DMA engine subsystem;

    - Arm Firmware Framework for ARMv8-A(FFA);

    - Cirrus firmware drivers;

    - GPU drivers;

    - HID subsystem;

    - Hardware monitoring drivers;

    - I2C subsystem;

    - InfiniBand drivers;

    - Input Device (Miscellaneous) drivers;

    - Multiple devices driver;

    - Media drivers;

    - TI TPS6594 PFSM driver;

    - MMC subsystem;

    - MTD block device drivers;

    - Network drivers;

    - NVME drivers;

    - x86 platform drivers;

    - RapidIO drivers;

    - Voltage and Current Regulator drivers;

    - Remote Processor subsystem;

    - S/390 drivers;

    - SCSI subsystem;

    - TCM subsystem;

    - Trusted Execution Environment drivers;

    - TTY drivers;

    - ChipIdea USB driver;

    - USB Type-C support driver;

    - Framebuffer layer;

    - TSM Common Guest driver;

    - File systems infrastructure;

    - BTRFS file system;

    - Ceph distributed file system;

    - Ext4 file system;

    - F2FS file system;

    - JFFS2 file system;

    - JFS file system;

    - Network file systems library;

    - Network file system (NFS) client;

    - Network file system (NFS) server daemon;

    - SMB network file system;

    - Asynchronous Transfer Mode (ATM) subsystem;

    - Memory Management;

    - Bluetooth subsystem;

    - Tracing infrastructure;

    - io_uring subsystem;

    - IPC subsystem;

    - BPF subsystem;

    - Perf events;

    - Kernel exit() syscall;

    - IRQ subsystem;

    - Scheduler infrastructure;

    - Maple Tree data structure library;

    - Memory management;

    - Ethernet bridge;

    - Networking core;

    - IPv6 networking;

    - MultiProtocol Label Switching driver;

    - Netfilter;

    - NFC subsystem;

    - Rose network layer;

    - Network traffic control;

    - Sun RPC protocol;

    - TIPC protocol;

    - TLS protocol;

    - Unix domain sockets;

    - VMware vSockets driver;

    - WCD audio codecs;

    - USB sound devices; (CVE-2025-38084, CVE-2025-38085, CVE-2025-38086, CVE-2025-38087, CVE-2025-38089,     CVE-2025-38090, CVE-2025-38179, CVE-2025-38180, CVE-2025-38181, CVE-2025-38182, CVE-2025-38183,     CVE-2025-38184, CVE-2025-38185, CVE-2025-38186, CVE-2025-38188, CVE-2025-38189, CVE-2025-38190,     CVE-2025-38191, CVE-2025-38192, CVE-2025-38193, CVE-2025-38194, CVE-2025-38196, CVE-2025-38197,     CVE-2025-38198, CVE-2025-38199, CVE-2025-38200, CVE-2025-38201, CVE-2025-38202, CVE-2025-38203,     CVE-2025-38204, CVE-2025-38205, CVE-2025-38206, 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-2025-38223, CVE-2025-38224, CVE-2025-38225, CVE-2025-38226,     CVE-2025-38227, CVE-2025-38228, CVE-2025-38229, CVE-2025-38230, CVE-2025-38231, CVE-2025-38232,     CVE-2025-38233, CVE-2025-38234, CVE-2025-38236, CVE-2025-38237, CVE-2025-38238, CVE-2025-38239,     CVE-2025-38241, CVE-2025-38242, 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-2025-38254, CVE-2025-38255,     CVE-2025-38256, CVE-2025-38257, CVE-2025-38258, CVE-2025-38259, CVE-2025-38260, CVE-2025-38261,     CVE-2025-38262, CVE-2025-38263, CVE-2025-38264, CVE-2025-38320, CVE-2025-38321, CVE-2025-38322,     CVE-2025-38323, CVE-2025-38324, CVE-2025-38325, CVE-2025-38326, CVE-2025-38328, CVE-2025-38329,     CVE-2025-38330, CVE-2025-38331, CVE-2025-38332, CVE-2025-38333, CVE-2025-38334, CVE-2025-38336,     CVE-2025-38337, CVE-2025-38338, CVE-2025-38339, CVE-2025-38340, CVE-2025-38341, CVE-2025-38342,     CVE-2025-38343, CVE-2025-38344, CVE-2025-38345, CVE-2025-38346, CVE-2025-38347, CVE-2025-38348,     CVE-2025-38353, CVE-2025-38354, CVE-2025-38355, CVE-2025-38356, CVE-2025-38359, CVE-2025-38360,     CVE-2025-38361, CVE-2025-38362, CVE-2025-38363, CVE-2025-38364, CVE-2025-38365, CVE-2025-38368,     CVE-2025-38369, CVE-2025-38370, CVE-2025-38371, CVE-2025-38372, CVE-2025-38373, CVE-2025-38374,     CVE-2025-38375, CVE-2025-38376, CVE-2025-38377, CVE-2025-38381, CVE-2025-38382, CVE-2025-38383,     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-2025-38411,     CVE-2025-38412, CVE-2025-38413, CVE-2025-38416, CVE-2025-38417, CVE-2025-38418, CVE-2025-38419,     CVE-2025-38420, CVE-2025-38421, CVE-2025-38422, CVE-2025-38423, CVE-2025-38424, CVE-2025-38425,     CVE-2025-38426, CVE-2025-38427, CVE-2025-38428, CVE-2025-38429, CVE-2025-38430, CVE-2025-38431,     CVE-2025-38434, CVE-2025-38435, CVE-2025-38436, CVE-2025-38523, CVE-2025-38541, CVE-2025-39682)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 24.04 LTS / 25.04 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7834-1 advisory.

    Oleksii Oleksenko, Cedric Fournet, Jana Hofmann, Boris Kpf, 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:

    - ARM64 architecture;

    - PowerPC architecture;

    - RISC-V architecture;

    - S390 architecture;

    - x86 architecture;

    - ACPI drivers;

    - Serial ATA and Parallel ATA drivers;

    - Drivers core;

    - ATA over ethernet (AOE) driver;

    - Ublk userspace block driver;

    - Bus devices;

    - DMA engine subsystem;

    - Arm Firmware Framework for ARMv8-A(FFA);

    - Cirrus firmware drivers;

    - GPU drivers;

    - HID subsystem;

    - Hardware monitoring drivers;

    - I2C subsystem;

    - InfiniBand drivers;

    - Input Device (Miscellaneous) drivers;

    - Multiple devices driver;

    - Media drivers;

    - TI TPS6594 PFSM driver;

    - MMC subsystem;

    - MTD block device drivers;

    - Network drivers;

    - NVME drivers;

    - x86 platform drivers;

    - RapidIO drivers;

    - Voltage and Current Regulator drivers;

    - Remote Processor subsystem;

    - S/390 drivers;

    - SCSI subsystem;

    - TCM subsystem;

    - Trusted Execution Environment drivers;

    - TTY drivers;

    - ChipIdea USB driver;

    - USB Type-C support driver;

    - Framebuffer layer;

    - TSM Common Guest driver;

    - File systems infrastructure;

    - BTRFS file system;

    - Ceph distributed file system;

    - Ext4 file system;

    - F2FS file system;

    - JFFS2 file system;

    - JFS file system;

    - Network file systems library;

    - Network file system (NFS) client;

    - Network file system (NFS) server daemon;

    - SMB network file system;

    - Memory Management;

    - Bluetooth subsystem;

    - Tracing infrastructure;

    - io_uring subsystem;

    - IPC subsystem;

    - BPF subsystem;

    - Perf events;

    - Kernel exit() syscall;

    - IRQ subsystem;

    - Scheduler infrastructure;

    - Maple Tree data structure library;

    - Memory management;

    - Asynchronous Transfer Mode (ATM) subsystem;

    - Ethernet bridge;

    - Networking core;

    - IPv6 networking;

    - MultiProtocol Label Switching driver;

    - Netfilter;

    - NFC subsystem;

    - Rose network layer;

    - Network traffic control;

    - Sun RPC protocol;

    - TIPC protocol;

    - TLS protocol;

    - Unix domain sockets;

    - VMware vSockets driver;

    - WCD audio codecs;

    - USB sound devices; (CVE-2025-38217, CVE-2025-38259, CVE-2025-38257, CVE-2025-38388, CVE-2025-38258,     CVE-2025-38086, CVE-2025-38416, CVE-2025-38428, CVE-2025-38368, CVE-2025-38233, CVE-2025-38391,     CVE-2025-38364, CVE-2025-38328, CVE-2025-38417, CVE-2025-38228, CVE-2025-38413, CVE-2025-38360,     CVE-2025-38248, CVE-2025-38346, CVE-2025-38197, CVE-2025-38179, CVE-2025-38186, CVE-2025-38356,     CVE-2025-38371, CVE-2025-38231, CVE-2025-38249, CVE-2025-38334, CVE-2025-38325, CVE-2025-38353,     CVE-2025-38422, CVE-2025-38387, CVE-2025-38225, CVE-2025-38224, CVE-2025-38400, CVE-2025-38245,     CVE-2025-38411, CVE-2025-38205, CVE-2025-38362, CVE-2025-38200, CVE-2025-38250, CVE-2025-38541,     CVE-2025-38326, CVE-2025-38342, CVE-2025-38208, CVE-2025-38261, CVE-2025-38407, CVE-2025-38202,     CVE-2025-38331, CVE-2025-38189, CVE-2025-38090, CVE-2025-38184, CVE-2025-38255, CVE-2025-38419,     CVE-2025-38340, CVE-2025-38383, CVE-2025-38423, CVE-2025-38332, CVE-2025-38246, CVE-2025-38429,     CVE-2025-38410, CVE-2025-38396, CVE-2025-38262, CVE-2025-38191, CVE-2025-38420, CVE-2025-38226,     CVE-2025-38341, CVE-2025-38199, CVE-2025-38085, CVE-2025-38188, CVE-2025-38253, CVE-2025-38182,     CVE-2025-38087, CVE-2025-38203, CVE-2025-38194, CVE-2025-38227, CVE-2025-38365, CVE-2025-38238,     CVE-2025-38201, CVE-2025-38196, CVE-2025-38232, CVE-2025-38361, CVE-2025-38392, CVE-2025-38254,     CVE-2025-38370, CVE-2025-38192, CVE-2025-38229, CVE-2025-38241, CVE-2025-38222, CVE-2025-38337,     CVE-2025-38343, CVE-2025-38321, CVE-2025-38183, CVE-2025-38381, CVE-2025-38354, CVE-2025-38234,     CVE-2025-38385, CVE-2025-38239, CVE-2025-38218, CVE-2025-38426, CVE-2025-38330, CVE-2025-38427,     CVE-2025-38523, CVE-2025-38260, CVE-2025-38425, CVE-2025-38320, CVE-2025-38424, CVE-2025-38372,     CVE-2025-38412, CVE-2025-38434, CVE-2025-38089, CVE-2025-38322, CVE-2025-38236, CVE-2025-38339,     CVE-2025-38237, CVE-2025-38386, CVE-2025-38395, CVE-2025-38431, CVE-2025-38329, CVE-2025-38436,     CVE-2025-38369, CVE-2025-38405, CVE-2025-38204, CVE-2025-38374, CVE-2025-38263, CVE-2025-38181,     CVE-2025-38363, CVE-2025-38084, CVE-2025-38206, CVE-2025-38359, CVE-2025-38347, CVE-2025-38421,     CVE-2025-38418, CVE-2025-38375, CVE-2025-38389, CVE-2025-38373, CVE-2025-38403, CVE-2025-38348,     CVE-2025-38399, CVE-2025-38242, CVE-2025-38393, CVE-2025-38336, CVE-2025-38264, CVE-2025-38408,     CVE-2025-38384, CVE-2025-38406, CVE-2025-38382, CVE-2025-38211, CVE-2025-38220, CVE-2025-38376,     CVE-2025-38401, CVE-2025-38344, CVE-2025-38223, CVE-2025-38251, CVE-2025-38324, CVE-2025-38402,     CVE-2025-38198, CVE-2025-38210, CVE-2025-38377, CVE-2025-38345, CVE-2025-38219, CVE-2025-39682,     CVE-2025-38355, CVE-2025-38333, CVE-2025-38338, CVE-2025-38256, CVE-2025-38390, CVE-2025-38435,     CVE-2025-38430, CVE-2025-38409, CVE-2025-38212)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 24.04 LTS / 25.04 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7833-1 advisory.

    Oleksii Oleksenko, Cedric Fournet, Jana Hofmann, Boris Kpf, 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:

    - ARM64 architecture;

    - PowerPC architecture;

    - RISC-V architecture;

    - S390 architecture;

    - x86 architecture;

    - ACPI drivers;

    - Serial ATA and Parallel ATA drivers;

    - Drivers core;

    - ATA over ethernet (AOE) driver;

    - Ublk userspace block driver;

    - Bus devices;

    - DMA engine subsystem;

    - Arm Firmware Framework for ARMv8-A(FFA);

    - Cirrus firmware drivers;

    - GPU drivers;

    - HID subsystem;

    - Hardware monitoring drivers;

    - I2C subsystem;

    - InfiniBand drivers;

    - Input Device (Miscellaneous) drivers;

    - Multiple devices driver;

    - Media drivers;

    - TI TPS6594 PFSM driver;

    - MMC subsystem;

    - MTD block device drivers;

    - Network drivers;

    - NVME drivers;

    - x86 platform drivers;

    - RapidIO drivers;

    - Voltage and Current Regulator drivers;

    - Remote Processor subsystem;

    - S/390 drivers;

    - SCSI subsystem;

    - TCM subsystem;

    - Trusted Execution Environment drivers;

    - TTY drivers;

    - ChipIdea USB driver;

    - USB Type-C support driver;

    - Framebuffer layer;

    - TSM Common Guest driver;

    - File systems infrastructure;

    - BTRFS file system;

    - Ceph distributed file system;

    - Ext4 file system;

    - F2FS file system;

    - JFFS2 file system;

    - JFS file system;

    - Network file systems library;

    - Network file system (NFS) client;

    - Network file system (NFS) server daemon;

    - SMB network file system;

    - Memory Management;

    - Bluetooth subsystem;

    - Tracing infrastructure;

    - io_uring subsystem;

    - IPC subsystem;

    - BPF subsystem;

    - Perf events;

    - Kernel exit() syscall;

    - IRQ subsystem;

    - Scheduler infrastructure;

    - Maple Tree data structure library;

    - Memory management;

    - Asynchronous Transfer Mode (ATM) subsystem;

    - Ethernet bridge;

    - Networking core;

    - IPv6 networking;

    - MultiProtocol Label Switching driver;

    - Netfilter;

    - NFC subsystem;

    - Rose network layer;

    - Network traffic control;

    - Sun RPC protocol;

    - TIPC protocol;

    - TLS protocol;

    - Unix domain sockets;

    - VMware vSockets driver;

    - WCD audio codecs;

    - USB sound devices; (CVE-2025-38339, CVE-2025-38391, CVE-2025-38262, CVE-2025-38345, CVE-2025-38387,     CVE-2025-38373, CVE-2025-38395, CVE-2025-38330, CVE-2025-38425, CVE-2025-38210, CVE-2025-38206,     CVE-2025-38219, CVE-2025-38245, CVE-2025-38253, CVE-2025-38401, CVE-2025-38410, CVE-2025-38086,     CVE-2025-38340, CVE-2025-38368, CVE-2025-38385, CVE-2025-38384, CVE-2025-38326, CVE-2025-38224,     CVE-2025-38338, CVE-2025-38191, CVE-2025-39682, CVE-2025-38343, CVE-2025-38090, CVE-2025-38228,     CVE-2025-38182, CVE-2025-38231, CVE-2025-38183, CVE-2025-38184, CVE-2025-38237, CVE-2025-38413,     CVE-2025-38356, CVE-2025-38246, CVE-2025-38202, CVE-2025-38248, CVE-2025-38254, CVE-2025-38426,     CVE-2025-38429, CVE-2025-38364, CVE-2025-38388, CVE-2025-38435, CVE-2025-38403, CVE-2025-38186,     CVE-2025-38199, CVE-2025-38402, CVE-2025-38181, CVE-2025-38264, CVE-2025-38362, CVE-2025-38341,     CVE-2025-38422, CVE-2025-38331, CVE-2025-38423, CVE-2025-38233, CVE-2025-38337, CVE-2025-38328,     CVE-2025-38196, CVE-2025-38412, CVE-2025-38205, CVE-2025-38242, CVE-2025-38324, CVE-2025-38354,     CVE-2025-38347, CVE-2025-38217, CVE-2025-38393, CVE-2025-38392, CVE-2025-38390, CVE-2025-38321,     CVE-2025-38541, CVE-2025-38363, CVE-2025-38203, CVE-2025-38250, CVE-2025-38418, CVE-2025-38336,     CVE-2025-38333, CVE-2025-38194, CVE-2025-38372, CVE-2025-38348, CVE-2025-38370, CVE-2025-38411,     CVE-2025-38188, CVE-2025-38365, CVE-2025-38241, CVE-2025-38201, CVE-2025-38259, CVE-2025-38355,     CVE-2025-38227, CVE-2025-38225, CVE-2025-38405, CVE-2025-38329, CVE-2025-38232, CVE-2025-38344,     CVE-2025-38238, CVE-2025-38239, CVE-2025-38260, CVE-2025-38257, CVE-2025-38399, CVE-2025-38419,     CVE-2025-38430, CVE-2025-38251, CVE-2025-38332, CVE-2025-38220, CVE-2025-38417, CVE-2025-38396,     CVE-2025-38234, CVE-2025-38434, CVE-2025-38197, CVE-2025-38436, CVE-2025-38408, CVE-2025-38204,     CVE-2025-38222, CVE-2025-38361, CVE-2025-38218, CVE-2025-38212, CVE-2025-38198, CVE-2025-38255,     CVE-2025-38389, CVE-2025-38085, CVE-2025-38244, CVE-2025-38089, CVE-2025-38428, CVE-2025-38369,     CVE-2025-38189, CVE-2025-38084, CVE-2025-38400, CVE-2025-38382, CVE-2025-38223, CVE-2025-38325,     CVE-2025-38263, CVE-2025-38249, CVE-2025-38346, CVE-2025-38320, CVE-2025-38409, CVE-2025-38374,     CVE-2025-38208, CVE-2025-38256, CVE-2025-38371, CVE-2025-38192, CVE-2025-38406, CVE-2025-38360,     CVE-2025-38258, CVE-2025-38226, CVE-2025-38376, CVE-2025-38375, CVE-2025-38200, CVE-2025-38523,     CVE-2025-38334, CVE-2025-38236, CVE-2025-38386, CVE-2025-38421, CVE-2025-38087, CVE-2025-38416,     CVE-2025-38179, CVE-2025-38420, CVE-2025-38424, CVE-2025-38377, CVE-2025-38359, CVE-2025-38342,     CVE-2025-38431, CVE-2025-38407, CVE-2025-38427, CVE-2025-38229, CVE-2025-38353, CVE-2025-38383,     CVE-2025-38211, CVE-2025-38322, CVE-2025-38381, CVE-2025-38261)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - In the Linux kernel, the following vulnerability has been resolved: mm/shmem, swap: fix softlockup with     mTHP swapin Following softlockup can be easily reproduced on my test machine with: echo always >     /sys/kernel/mm/transparent_hugepage/hugepages-64kB/enabled swapon /dev/zram0 # zram0 is a 48G swap device     mkdir -p /sys/fs/cgroup/memory/test echo 1G > /sys/fs/cgroup/test/memory.max echo $BASHPID >     /sys/fs/cgroup/test/cgroup.procs while true; do dd if=/dev/zero of=/tmp/test.img bs=1M count=5120 cat     /tmp/test.img > /dev/null rm /tmp/test.img done Then after a while: watchdog: BUG: soft lockup - CPU#0     stuck for 763s! [cat:5787] Modules linked in: zram virtiofs CPU: 0 UID: 0 PID: 5787 Comm: cat Kdump:
    loaded Tainted: G L 6.15.0.orig-gf3021d9246bc-dirty #118 PREEMPT(voluntary) Tainted: [L]=SOFTLOCKUP     Hardware name: Red Hat KVM/RHEL-AV, BIOS 0.0.0 02/06/2015 RIP: 0010:mpol_shared_policy_lookup+0xd/0x70     Code: e9 b8 b4 ff ff 31 c0 c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00     0f 1f 44 00 00 41 54 55 53 <48> 8b 1f 48 85 db 74 41 4c 8d 67 08 48 89 fb 48 89 f5 4c 89 e7 e8 RSP:
    0018:ffffc90002b1fc28 EFLAGS: 00000202 RAX: 00000000001c20ca RBX: 0000000000724e1e RCX: 0000000000000001     RDX: ffff888118e214c8 RSI: 0000000000057d42 RDI: ffff888118e21518 RBP: 000000000002bec8 R08:
    0000000000000001 R09: 0000000000000000 R10: 0000000000000bf4 R11: 0000000000000000 R12: 0000000000000001     R13: 00000000001c20ca R14: 00000000001c20ca R15: 0000000000000000 FS: 00007f03f995c740(0000)     GS:ffff88a07ad9a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2:
    00007f03f98f1000 CR3: 0000000144626004 CR4: 0000000000770eb0 DR0: 0000000000000000 DR1: 0000000000000000     DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554     Call Trace: <TASK> shmem_alloc_folio+0x31/0xc0 shmem_swapin_folio+0x309/0xcf0 ?     filemap_get_entry+0x117/0x1e0 ? xas_load+0xd/0xb0 ? filemap_get_entry+0x101/0x1e0     shmem_get_folio_gfp+0x2ed/0x5b0 shmem_file_read_iter+0x7f/0x2e0 vfs_read+0x252/0x330 ksys_read+0x68/0xf0     do_syscall_64+0x4c/0x1c0 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7f03f9a46991 Code: 00 48 8b     15 81 14 10 00 f7 d8 64 89 02 b8 ff ff ff ff eb bd e8 20 ad 01 00 f3 0f 1e fa 80 3d 35 97 10 00 00 74 13     31 c0 0f 05 <48> 3d 00 f0 ff ff 77 4f c3 66 0f 1f 44 00 00 55 48 89 e5 48 83 ec RSP: 002b:00007fff3c52bd28     EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000000000040000 RCX:
    00007f03f9a46991 RDX: 0000000000040000 RSI: 00007f03f98ba000 RDI: 0000000000000003 RBP: 00007fff3c52bd50     R08: 0000000000000000 R09: 00007f03f9b9a380 R10: 0000000000000022 R11: 0000000000000246 R12:
    0000000000040000 R13: 00007f03f98ba000 R14: 0000000000000003 R15: 0000000000000000 </TASK> The reason is     simple, readahead brought some order 0 folio in swap cache, and the swapin mTHP folio being allocated is     in conflict with it, so swapcache_prepare fails and causes shmem_swap_alloc_folio to return -EEXIST, and     shmem simply retries again and again causing this loop. Fix it by applying a similar fix for anon mTHP     swapin. The performance change is very slight, time of swapin 10g zero folios with shmem (test for 12     times): Before: 2.47s After: 2.48s [kasong@tencent.com: add comment] (CVE-2025-38241)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
272302	Ubuntu 24.04 LTS : Linux kernel (HWE) vulnerabilities (USN-7856-1)	Nessus	Ubuntu Local Security Checks	medium
271193	Ubuntu 24.04 LTS / 25.04 : Linux kernel (Azure) vulnerabilities (USN-7834-1)	Nessus	Ubuntu Local Security Checks	medium
271191	Ubuntu 24.04 LTS / 25.04 : Linux kernel vulnerabilities (USN-7833-1)	Nessus	Ubuntu Local Security Checks	medium
252974	Linux Distros Unpatched Vulnerability : CVE-2025-38241	Nessus	Misc.	medium

Detections

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CVE-2025-38241

medium

Tenable Plugins

medium

medium

medium

medium