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ALSA-2025:12752 (CVE-2022-50020)
Vulnerability from osv_almalinux – Published: 2025-08-04 00:00 – Updated: 2025-08-07 10:29 – Source websiteThe kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
- kernel: HID: intel-ish-hid: Fix use-after-free issue in ishtp_hid_remove() (CVE-2025-21928)
- kernel: memstick: rtsx_usb_ms: Fix slab-use-after-free in rtsx_usb_ms_drv_remove (CVE-2025-22020)
- kernel: net_sched: hfsc: Fix a UAF vulnerability in class with netem as child qdisc (CVE-2025-37890)
- kernel: net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done (CVE-2025-38052)
- kernel: crypto: algif_hash - fix double free in hash_accept (CVE-2025-38079)
- kernel: ext4: avoid resizing to a partial cluster size (CVE-2022-50020)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
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"details": "The kernel packages contain the Linux kernel, the core of any Linux operating system. \n\nSecurity Fix(es): \n\n * kernel: HID: intel-ish-hid: Fix use-after-free issue in ishtp_hid_remove() (CVE-2025-21928)\n * kernel: memstick: rtsx_usb_ms: Fix slab-use-after-free in rtsx_usb_ms_drv_remove (CVE-2025-22020)\n * kernel: net_sched: hfsc: Fix a UAF vulnerability in class with netem as child qdisc (CVE-2025-37890)\n * kernel: net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done (CVE-2025-38052)\n * kernel: crypto: algif_hash - fix double free in hash_accept (CVE-2025-38079)\n * kernel: ext4: avoid resizing to a partial cluster size (CVE-2022-50020)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
"id": "ALSA-2025:12752",
"modified": "2025-08-07T10:29:22Z",
"published": "2025-08-04T00:00:00Z",
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"url": "https://access.redhat.com/errata/RHSA-2025:12752"
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"url": "https://errata.almalinux.org/8/ALSA-2025-12752.html"
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"related": [
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CVE-2022-50020 (GCVE-0-2022-50020)
Vulnerability from cvelistv5 – Published: 2025-06-18 11:01 – Updated: 2026-11-05 20:00| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/7bdfb01fc5f6b3696… | |
| https://git.kernel.org/stable/c/a6805b3dcf5cd41f2… | |
| https://git.kernel.org/stable/c/80288883294c5b4ed… | |
| https://git.kernel.org/stable/c/72b850a2a996f7254… | |
| https://git.kernel.org/stable/c/0082e99a9074ff88e… | |
| https://git.kernel.org/stable/c/69cb8e9d8cd97cdf5… |
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
d77147ff443b255d82c907a632c825b2cc610b10 , < 7bdfb01fc5f6b3696728aeb527c50386e0ee09a1
(git)
Affected: d77147ff443b255d82c907a632c825b2cc610b10 , < a6805b3dcf5cd41f2ae3a03dca43411135b99849 (git) Affected: d77147ff443b255d82c907a632c825b2cc610b10 , < 80288883294c5b4ed18bae0d8bd9c4a12f297074 (git) Affected: d77147ff443b255d82c907a632c825b2cc610b10 , < 72b850a2a996f72541172e7cf686d54a2b29bcd8 (git) Affected: d77147ff443b255d82c907a632c825b2cc610b10 , < 0082e99a9074ff88eff729c70c93454c8588d8e1 (git) Affected: d77147ff443b255d82c907a632c825b2cc610b10 , < 69cb8e9d8cd97cdf5e293b26d70a9dee3e35e6bd (git) |
|
| Linux | Linux |
Affected:
4.15
Unaffected: 0 , < 4.15 (semver) Unaffected: 4.19.256 , ≤ 4.19.* (semver) Unaffected: 5.4.211 , ≤ 5.4.* (semver) Unaffected: 5.10.138 , ≤ 5.10.* (semver) Unaffected: 5.15.63 , ≤ 5.15.* (semver) Unaffected: 5.19.4 , ≤ 5.19.* (semver) Unaffected: 6.0 , ≤ * (original_commit_for_fix) |
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CVE-2025-21928 (GCVE-0-2025-21928)
Vulnerability from cvelistv5 – Published: 2025-04-01 15:40 – Updated: 2026-05-11 21:09- CWE-416 - Use After Free
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/0c1fb475ef999d6c2… | |
| https://git.kernel.org/stable/c/d3faae7f42181865c… | |
| https://git.kernel.org/stable/c/01b18a330cda61cc2… | |
| https://git.kernel.org/stable/c/cf1a6015d2f6b1f0a… | |
| https://git.kernel.org/stable/c/560f4d1299342504a… | |
| https://git.kernel.org/stable/c/dea6a349bcaf243ff… | |
| https://git.kernel.org/stable/c/eb0695d87a81e7c1f… | |
| https://git.kernel.org/stable/c/07583a0010696a17f… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://lists.debian.org/debian-lts-announce/2025… |
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
0b28cb4bcb17dcb5fe0763fc3e1a94398b8f6cf6 , < 0c1fb475ef999d6c22fc3f963fdf20cb3ed1b03d
(git)
Affected: 0b28cb4bcb17dcb5fe0763fc3e1a94398b8f6cf6 , < d3faae7f42181865c799d88c5054176f38ae4625 (git) Affected: 0b28cb4bcb17dcb5fe0763fc3e1a94398b8f6cf6 , < 01b18a330cda61cc21423a7d1af92cf31ded8f60 (git) Affected: 0b28cb4bcb17dcb5fe0763fc3e1a94398b8f6cf6 , < cf1a6015d2f6b1f0afaa0fd6a0124ff2c7943394 (git) Affected: 0b28cb4bcb17dcb5fe0763fc3e1a94398b8f6cf6 , < 560f4d1299342504a6ab8a47f575b5e6b8345ada (git) Affected: 0b28cb4bcb17dcb5fe0763fc3e1a94398b8f6cf6 , < dea6a349bcaf243fff95dfd0428a26be6a0fb44e (git) Affected: 0b28cb4bcb17dcb5fe0763fc3e1a94398b8f6cf6 , < eb0695d87a81e7c1f0509b7d8ee7c65fbc26aec9 (git) Affected: 0b28cb4bcb17dcb5fe0763fc3e1a94398b8f6cf6 , < 07583a0010696a17fb0942e0b499a62785c5fc9f (git) |
|
| Linux | Linux |
Affected:
4.9
Unaffected: 0 , < 4.9 (semver) Unaffected: 5.4.291 , ≤ 5.4.* (semver) Unaffected: 5.10.235 , ≤ 5.10.* (semver) Unaffected: 5.15.179 , ≤ 5.15.* (semver) Unaffected: 6.1.131 , ≤ 6.1.* (semver) Unaffected: 6.6.83 , ≤ 6.6.* (semver) Unaffected: 6.12.19 , ≤ 6.12.* (semver) Unaffected: 6.13.7 , ≤ 6.13.* (semver) Unaffected: 6.14 , ≤ * (original_commit_for_fix) |
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CVE-2025-22020 (GCVE-0-2025-22020)
Vulnerability from cvelistv5 – Published: 2025-04-16 10:20 – Updated: 2026-08-05 11:56- CWE-416 - Use After Free
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/914c5e5bfceb9878f… | |
| https://git.kernel.org/stable/c/9dfaf4d723c62bda8… | |
| https://git.kernel.org/stable/c/31f0eaed6914333f4… | |
| https://git.kernel.org/stable/c/52d942a5302eefb3b… | |
| https://git.kernel.org/stable/c/6186fb2cd36317277… | |
| https://git.kernel.org/stable/c/b094e8e3988e02e8c… | |
| https://git.kernel.org/stable/c/0067cb7d7e7c277e9… | |
| https://git.kernel.org/stable/c/75123adf204f997e1… | |
| https://git.kernel.org/stable/c/4676741a3464b300b… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://lists.debian.org/debian-lts-announce/2025… |
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
6827ca573c03385439fdfc8b512d556dc7c54fc9 , < 914c5e5bfceb9878f3056eaf4d1c88f2cbe0a185
(git)
Affected: 6827ca573c03385439fdfc8b512d556dc7c54fc9 , < 9dfaf4d723c62bda8d9d1340e2e78acf0c190439 (git) Affected: 6827ca573c03385439fdfc8b512d556dc7c54fc9 , < 31f0eaed6914333f42501fc7e0f6830879f5ef2d (git) Affected: 6827ca573c03385439fdfc8b512d556dc7c54fc9 , < 52d942a5302eefb3b7a3bfee310a5a33feeedc21 (git) Affected: 6827ca573c03385439fdfc8b512d556dc7c54fc9 , < 6186fb2cd36317277a8423687982140a7f3f7841 (git) Affected: 6827ca573c03385439fdfc8b512d556dc7c54fc9 , < b094e8e3988e02e8cef7a756c8d2cea9c12509ab (git) Affected: 6827ca573c03385439fdfc8b512d556dc7c54fc9 , < 0067cb7d7e7c277e91a0887a3c24e71462379469 (git) Affected: 6827ca573c03385439fdfc8b512d556dc7c54fc9 , < 75123adf204f997e11bbddee48408c284f51c050 (git) Affected: 6827ca573c03385439fdfc8b512d556dc7c54fc9 , < 4676741a3464b300b486e70585c3c9b692be1632 (git) |
|
| Linux | Linux |
Affected:
5.0
Unaffected: 0 , < 5.0 (semver) Unaffected: 5.4.292 , ≤ 5.4.* (semver) Unaffected: 5.10.236 , ≤ 5.10.* (semver) Unaffected: 5.15.180 , ≤ 5.15.* (semver) Unaffected: 6.1.133 , ≤ 6.1.* (semver) Unaffected: 6.6.86 , ≤ 6.6.* (semver) Unaffected: 6.12.22 , ≤ 6.12.* (semver) Unaffected: 6.13.10 , ≤ 6.13.* (semver) Unaffected: 6.14.1 , ≤ 6.14.* (semver) Unaffected: 6.15 , ≤ * (original_commit_for_fix) |
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmemstick: rtsx_usb_ms: Fix slab-use-after-free in rtsx_usb_ms_drv_remove\n\nThis fixes the following crash:\n\n==================================================================\nBUG: KASAN: slab-use-after-free in rtsx_usb_ms_poll_card+0x159/0x200 [rtsx_usb_ms]\nRead of size 8 at addr ffff888136335380 by task kworker/6:0/140241\n\nCPU: 6 UID: 0 PID: 140241 Comm: kworker/6:0 Kdump: loaded Tainted: G E 6.14.0-rc6+ #1\nTainted: [E]=UNSIGNED_MODULE\nHardware name: LENOVO 30FNA1V7CW/1057, BIOS S0EKT54A 07/01/2024\nWorkqueue: events rtsx_usb_ms_poll_card [rtsx_usb_ms]\nCall Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x51/0x70\n print_address_description.constprop.0+0x27/0x320\n ? rtsx_usb_ms_poll_card+0x159/0x200 [rtsx_usb_ms]\n print_report+0x3e/0x70\n kasan_report+0xab/0xe0\n ? rtsx_usb_ms_poll_card+0x159/0x200 [rtsx_usb_ms]\n rtsx_usb_ms_poll_card+0x159/0x200 [rtsx_usb_ms]\n ? __pfx_rtsx_usb_ms_poll_card+0x10/0x10 [rtsx_usb_ms]\n ? __pfx___schedule+0x10/0x10\n ? kick_pool+0x3b/0x270\n process_one_work+0x357/0x660\n worker_thread+0x390/0x4c0\n ? __pfx_worker_thread+0x10/0x10\n kthread+0x190/0x1d0\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x2d/0x50\n ? __pfx_kthread+0x10/0x10\n ret_from_fork_asm+0x1a/0x30\n \u003c/TASK\u003e\n\nAllocated by task 161446:\n kasan_save_stack+0x20/0x40\n kasan_save_track+0x10/0x30\n __kasan_kmalloc+0x7b/0x90\n __kmalloc_noprof+0x1a7/0x470\n memstick_alloc_host+0x1f/0xe0 [memstick]\n rtsx_usb_ms_drv_probe+0x47/0x320 [rtsx_usb_ms]\n platform_probe+0x60/0xe0\n call_driver_probe+0x35/0x120\n really_probe+0x123/0x410\n __driver_probe_device+0xc7/0x1e0\n driver_probe_device+0x49/0xf0\n __device_attach_driver+0xc6/0x160\n bus_for_each_drv+0xe4/0x160\n __device_attach+0x13a/0x2b0\n bus_probe_device+0xbd/0xd0\n device_add+0x4a5/0x760\n platform_device_add+0x189/0x370\n mfd_add_device+0x587/0x5e0\n mfd_add_devices+0xb1/0x130\n rtsx_usb_probe+0x28e/0x2e0 [rtsx_usb]\n usb_probe_interface+0x15c/0x460\n call_driver_probe+0x35/0x120\n really_probe+0x123/0x410\n __driver_probe_device+0xc7/0x1e0\n driver_probe_device+0x49/0xf0\n __device_attach_driver+0xc6/0x160\n bus_for_each_drv+0xe4/0x160\n __device_attach+0x13a/0x2b0\n rebind_marked_interfaces.isra.0+0xcc/0x110\n usb_reset_device+0x352/0x410\n usbdev_do_ioctl+0xe5c/0x1860\n usbdev_ioctl+0xa/0x20\n __x64_sys_ioctl+0xc5/0xf0\n do_syscall_64+0x59/0x170\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nFreed by task 161506:\n kasan_save_stack+0x20/0x40\n kasan_save_track+0x10/0x30\n kasan_save_free_info+0x36/0x60\n __kasan_slab_free+0x34/0x50\n kfree+0x1fd/0x3b0\n device_release+0x56/0xf0\n kobject_cleanup+0x73/0x1c0\n rtsx_usb_ms_drv_remove+0x13d/0x220 [rtsx_usb_ms]\n platform_remove+0x2f/0x50\n device_release_driver_internal+0x24b/0x2e0\n bus_remove_device+0x124/0x1d0\n device_del+0x239/0x530\n platform_device_del.part.0+0x19/0xe0\n platform_device_unregister+0x1c/0x40\n mfd_remove_devices_fn+0x167/0x170\n device_for_each_child_reverse+0xc9/0x130\n mfd_remove_devices+0x6e/0xa0\n rtsx_usb_disconnect+0x2e/0xd0 [rtsx_usb]\n usb_unbind_interface+0xf3/0x3f0\n device_release_driver_internal+0x24b/0x2e0\n proc_disconnect_claim+0x13d/0x220\n usbdev_do_ioctl+0xb5e/0x1860\n usbdev_ioctl+0xa/0x20\n __x64_sys_ioctl+0xc5/0xf0\n do_syscall_64+0x59/0x170\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nLast potentially related work creation:\n kasan_save_stack+0x20/0x40\n kasan_record_aux_stack+0x85/0x90\n insert_work+0x29/0x100\n __queue_work+0x34a/0x540\n call_timer_fn+0x2a/0x160\n expire_timers+0x5f/0x1f0\n __run_timer_base.part.0+0x1b6/0x1e0\n run_timer_softirq+0x8b/0xe0\n handle_softirqs+0xf9/0x360\n __irq_exit_rcu+0x114/0x130\n sysvec_apic_timer_interrupt+0x72/0x90\n asm_sysvec_apic_timer_interrupt+0x16/0x20\n\nSecond to last potentially related work creation:\n kasan_save_stack+0x20/0x40\n kasan_record_aux_stack+0x85/0x90\n insert_work+0x29/0x100\n __queue_work+0x34a/0x540\n call_timer_fn+0x2a/0x160\n expire_timers+0x5f/0x1f0\n __run_timer_base.part.0+0x1b6/0x1e0\n run_timer_softirq+0x8b/0xe0\n handle_softirqs+0xf9/0x\n---truncated---"
}
],
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{
"lang": "en",
"value": "AV:L - The reporter\u0027s own KASAN trace shows the free being driven entirely from userspace via usbfs ioctls (`USBDEVFS_DISCONNECT_CLAIM` and `USBDEVFS_RESET` through `usbdev_do_ioctl`), requiring no physical manipulation of the reader, only local access to `/dev/bus/usb/...`.\nAC:L - The attacker controls both sides: the poll_card delayed work is perpetually re-armed every 100 jiffies while a MemStick card is powered, so an unbind issued at any moment reliably lands with a pending timer into the freed object, and the disconnect ioctl can be repeated in a loop until the heap is groomed as desired.\nPR:L - Only an ordinary local account with usbfs access (granted to the active seat user by uaccess/plugdev udev rules on common desktop distributions) is needed; the disconnect-claim and device-reset ioctl paths perform no capability check.\nUI:N - The attacker performs the unbind/reset ioctls itself and no action by another user is required; presence of the Realtek USB card reader is a property of the affected configuration, not victim interaction.\nS:U - The use-after-free is confined to kernel slab memory within the same security authority, with no crossing of a VM, IOMMU, or sandbox boundary.\nC:H - The freed 2048-byte object is re-read by the poll worker and, after slab reclaim, the dangling `ucr`/`pdev`/`msh` pointers loaded from it can be steered to dereference attacker-chosen kernel addresses, yielding an arbitrary-read primitive well beyond the initial 8-byte KASAN-reported leak.\nI:H - The `timer_list` and `work_struct` embedded in the freed region give a direct function-pointer hijack via `call_timer_fn()`, and `mutex_lock(\u0026ucr-\u003edev_mutex)` on a sprayed pointer provides a write primitive, so the UAF is exploitable for control-flow hijack and privilege escalation.\nA:H - The unfixed path reliably produces a slab-use-after-free that KASAN reports and that causes kernel oops/panic in ordinary (non-KASAN) kernels, and the trigger can be repeated at will by an unprivileged local user."
}
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"url": "https://git.kernel.org/stable/c/6186fb2cd36317277a8423687982140a7f3f7841"
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{
"url": "https://git.kernel.org/stable/c/4676741a3464b300b486e70585c3c9b692be1632"
}
],
"title": "memstick: rtsx_usb_ms: Fix slab-use-after-free in rtsx_usb_ms_drv_remove",
"x_generator": {
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}
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"assignerShortName": "Linux",
"cveId": "CVE-2025-22020",
"datePublished": "2025-04-16T10:20:37.045Z",
"dateReserved": "2024-12-29T08:45:45.807Z",
"dateUpdated": "2026-08-05T11:56:02.551Z",
"state": "PUBLISHED"
},
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}
CVE-2025-37890 (GCVE-0-2025-37890)
Vulnerability from cvelistv5 – Published: 2025-05-16 13:01 – Updated: 2026-08-05 11:58| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/273bbcfa53541cde3… | |
| https://git.kernel.org/stable/c/e0cf8ee23e1915431… | |
| https://git.kernel.org/stable/c/e3e949a39a91d1f82… | |
| https://git.kernel.org/stable/c/8df7d37d626430035… | |
| https://git.kernel.org/stable/c/6082a87af4c52f581… | |
| https://git.kernel.org/stable/c/2e7093c7a8aba5d4f… | |
| https://git.kernel.org/stable/c/ac39fd4a757584d78… | |
| https://git.kernel.org/stable/c/141d34391abbb315d… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://lists.debian.org/debian-lts-announce/2025… |
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea , < 273bbcfa53541cde38b2003ad88a59b770306421
(git)
Affected: 37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea , < e0cf8ee23e1915431f262a7b2dee0c7a7d699af0 (git) Affected: 37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea , < e3e949a39a91d1f829a4890e7dfe9417ac72e4d0 (git) Affected: 37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea , < 8df7d37d626430035b413b97cee18396b3450bef (git) Affected: 37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea , < 6082a87af4c52f58150d40dec1716011d871ac21 (git) Affected: 37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea , < 2e7093c7a8aba5d4f8809f271488e5babe75e202 (git) Affected: 37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea , < ac39fd4a757584d78ed062d4f6fd913f83bd98b5 (git) Affected: 37d9cf1a3ce35de3df6f7d209bfb1f50cf188cea , < 141d34391abbb315d68556b7c67ad97885407547 (git) |
|
| Linux | Linux |
Affected:
5.0
Unaffected: 0 , < 5.0 (semver) Unaffected: 5.4.294 , ≤ 5.4.* (semver) Unaffected: 5.10.238 , ≤ 5.10.* (semver) Unaffected: 5.15.182 , ≤ 5.15.* (semver) Unaffected: 6.1.138 , ≤ 6.1.* (semver) Unaffected: 6.6.90 , ≤ 6.6.* (semver) Unaffected: 6.12.28 , ≤ 6.12.* (semver) Unaffected: 6.14.6 , ≤ 6.14.* (semver) Unaffected: 6.15 , ≤ * (original_commit_for_fix) |
{
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{
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"product": "Linux",
"programFiles": [
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],
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"versions": [
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{
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"cpeApplicability": [
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"vulnerable": true
},
{
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{
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"vulnerable": true
},
{
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},
{
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}
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet_sched: hfsc: Fix a UAF vulnerability in class with netem as child qdisc\n\nAs described in Gerrard\u0027s report [1], we have a UAF case when an hfsc class\nhas a netem child qdisc. The crux of the issue is that hfsc is assuming\nthat checking for cl-\u003eqdisc-\u003eq.qlen == 0 guarantees that it hasn\u0027t inserted\nthe class in the vttree or eltree (which is not true for the netem\nduplicate case).\n\nThis patch checks the n_active class variable to make sure that the code\nwon\u0027t insert the class in the vttree or eltree twice, catering for the\nreentrant case.\n\n[1] https://lore.kernel.org/netdev/CAHcdcOm+03OD2j6R0=YHKqmy=VgJ8xEOKuP6c7mSgnp-TEJJbw@mail.gmail.com/"
}
],
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"value": "AV:L - Exploitation requires configuring an hfsc qdisc with a netem child (duplicate enabled) via RTNETLINK/tc and then transmitting packets locally, so the attacker must have local access to the system. Per kernel scoring guidance, tc/netlink qdisc bugs are Local.\nAC:L - The reentrancy is deterministic \u2014 netem\u0027s duplicate path re-enters hfsc_enqueue() synchronously on the same CPU before the child qdisc\u0027s qlen is incremented, so a single packet with duplicate=100% reliably double-activates the class. No race or uncontrolled memory-layout condition is involved.\nPR:L - Qdisc/class creation requires CAP_NET_ADMIN, but only ns_capable() over the netns owner user namespace (netlink_net_capable in rtnetlink_rcv_msg), which any unprivileged user obtains with `unshare -Urn` on default distro configs. Triggering enqueue only needs sending a packet over the local device.\nUI:N - The attacker performs every step \u2014 qdisc/class setup, packet transmission, and class deletion \u2014 with no action from any other user or administrator.\nS:U - The corruption and its consequences are confined to the kernel\u0027s own memory and scheduling structures within the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The freed hfsc_class remains linked in the parent\u0027s vt_tree/cf_tree and the eligible rbtree, so subsequent rbtree traversals read attacker-groomed heap contents; a UAF of a slab object with reclaimed contents yields a kernel information-disclosure primitive.\nI:H - Stale rb_node links cause rb_insert_color()/rb_erase()/vttree_update() to write into freed memory that the attacker can reclaim with a controlled object, giving a write primitive suitable for control-flow hijacking and privilege escalation. The doubly-inserted el_node additionally corrupts the eligible rbtree structure itself.\nA:H - Even without weaponization, the use-after-free and corrupted rbtree produce oopses, hangs on cyclic tree traversal, or a kernel panic, taking the whole system down."
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CVE-2025-38052 (GCVE-0-2025-38052)
Vulnerability from cvelistv5 – Published: 2025-06-18 09:33 – Updated: 2026-10-15 21:52| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/d42ed4de6aba232d9… | |
| https://git.kernel.org/stable/c/f5c2c4eaaa5a8e7e0… | |
| https://git.kernel.org/stable/c/b8fcae6d2e93c54ca… | |
| https://git.kernel.org/stable/c/b19fc1d0be3c3397e… | |
| https://git.kernel.org/stable/c/689a205cd968a1572… | |
| https://git.kernel.org/stable/c/4a0fddc2c0d5c28ae… | |
| https://git.kernel.org/stable/c/e279024617134c94f… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://lists.debian.org/debian-lts-announce/2025… |
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 , < d42ed4de6aba232d946d20653a70f79158a6535b
(git)
Affected: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 , < f5c2c4eaaa5a8e7e0685ec031d480e588e263e59 (git) Affected: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 , < b8fcae6d2e93c54cacb8f579a77d827c1c643eb5 (git) Affected: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 , < b19fc1d0be3c3397e5968fe2627f22e7f84673b1 (git) Affected: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 , < 689a205cd968a1572ab561b0c4c2d50a10e9d3b0 (git) Affected: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 , < 4a0fddc2c0d5c28aec8c262ad4603be0bef1938c (git) Affected: fc1b6d6de2208774efd2a20bf0daddb02d18b1e0 , < e279024617134c94fd3e37470156534d5f2b3472 (git) |
|
| Linux | Linux |
Affected:
5.5
Unaffected: 0 , < 5.5 (semver) Unaffected: 5.10.238 , ≤ 5.10.* (semver) Unaffected: 5.15.185 , ≤ 5.15.* (semver) Unaffected: 6.1.141 , ≤ 6.1.* (semver) Unaffected: 6.6.93 , ≤ 6.6.* (semver) Unaffected: 6.12.31 , ≤ 6.12.* (semver) Unaffected: 6.14.9 , ≤ 6.14.* (semver) Unaffected: 6.15 , ≤ * (original_commit_for_fix) |
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done\n\nSyzbot reported a slab-use-after-free with the following call trace:\n\n ==================================================================\n BUG: KASAN: slab-use-after-free in tipc_aead_encrypt_done+0x4bd/0x510 net/tipc/crypto.c:840\n Read of size 8 at addr ffff88807a733000 by task kworker/1:0/25\n\n Call Trace:\n kasan_report+0xd9/0x110 mm/kasan/report.c:601\n tipc_aead_encrypt_done+0x4bd/0x510 net/tipc/crypto.c:840\n crypto_request_complete include/crypto/algapi.h:266\n aead_request_complete include/crypto/internal/aead.h:85\n cryptd_aead_crypt+0x3b8/0x750 crypto/cryptd.c:772\n crypto_request_complete include/crypto/algapi.h:266\n cryptd_queue_worker+0x131/0x200 crypto/cryptd.c:181\n process_one_work+0x9fb/0x1b60 kernel/workqueue.c:3231\n\n Allocated by task 8355:\n kzalloc_noprof include/linux/slab.h:778\n tipc_crypto_start+0xcc/0x9e0 net/tipc/crypto.c:1466\n tipc_init_net+0x2dd/0x430 net/tipc/core.c:72\n ops_init+0xb9/0x650 net/core/net_namespace.c:139\n setup_net+0x435/0xb40 net/core/net_namespace.c:343\n copy_net_ns+0x2f0/0x670 net/core/net_namespace.c:508\n create_new_namespaces+0x3ea/0xb10 kernel/nsproxy.c:110\n unshare_nsproxy_namespaces+0xc0/0x1f0 kernel/nsproxy.c:228\n ksys_unshare+0x419/0x970 kernel/fork.c:3323\n __do_sys_unshare kernel/fork.c:3394\n\n Freed by task 63:\n kfree+0x12a/0x3b0 mm/slub.c:4557\n tipc_crypto_stop+0x23c/0x500 net/tipc/crypto.c:1539\n tipc_exit_net+0x8c/0x110 net/tipc/core.c:119\n ops_exit_list+0xb0/0x180 net/core/net_namespace.c:173\n cleanup_net+0x5b7/0xbf0 net/core/net_namespace.c:640\n process_one_work+0x9fb/0x1b60 kernel/workqueue.c:3231\n\nAfter freed the tipc_crypto tx by delete namespace, tipc_aead_encrypt_done\nmay still visit it in cryptd_queue_worker workqueue.\n\nI reproduce this issue by:\n ip netns add ns1\n ip link add veth1 type veth peer name veth2\n ip link set veth1 netns ns1\n ip netns exec ns1 tipc bearer enable media eth dev veth1\n ip netns exec ns1 tipc node set key this_is_a_master_key master\n ip netns exec ns1 tipc bearer disable media eth dev veth1\n ip netns del ns1\n\nThe key of reproduction is that, simd_aead_encrypt is interrupted, leading\nto crypto_simd_usable() return false. Thus, the cryptd_queue_worker is\ntriggered, and the tipc_crypto tx will be visited.\n\n tipc_disc_timeout\n tipc_bearer_xmit_skb\n tipc_crypto_xmit\n tipc_aead_encrypt\n crypto_aead_encrypt\n // encrypt()\n simd_aead_encrypt\n // crypto_simd_usable() is false\n child = \u0026ctx-\u003ecryptd_tfm-\u003ebase;\n\n simd_aead_encrypt\n crypto_aead_encrypt\n // encrypt()\n cryptd_aead_encrypt_enqueue\n cryptd_aead_enqueue\n cryptd_enqueue_request\n // trigger cryptd_queue_worker\n queue_work_on(smp_processor_id(), cryptd_wq, \u0026cpu_queue-\u003ework)\n\nFix this by holding net reference count before encrypt."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
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{
"lang": "en",
"value": "AV:N - The vulnerable encrypt path is bound to the TIPC network stack and is driven by remote peer traffic \u2014 an inbound DSC_REQ_MSG forces an encrypted DSC_RESP_MSG through tipc_crypto_xmit()/tipc_aead_encrypt() before any node is established, and TIPC bearers include IP/UDP media (CONFIG_TIPC_MEDIA_UDP default y), which is routable across the internet.\nAC:L - The attacker controls both sides of the race \u2014 flooding discovery/link-protocol traffic keeps many async cryptd encryptions in flight while the namespace teardown that frees tipc_crypto is issued on demand, and the sequence can be retried without limit; on platforms with asynchronous AEAD accelerators the -EINPROGRESS callback path is taken unconditionally rather than being a race at all.\nPR:L - No real root is needed: the TIPC v2 generic-netlink ops carry no GENL_ADMIN_PERM (the only capability check in net/tipc is the legacy compat path), and `unshare -Urn` grants CAP_NET_ADMIN inside a fresh netns for veth/bearer/key setup, with namespace exit performing the free \u2014 matching the syzbot trace via ksys_unshare \u2192 copy_net_ns \u2192 tipc_crypto_start.\nUI:N - The entire sequence (bearer enable, key set, packet flood, namespace teardown) is performed by the attacker; no victim action or cooperation is required.\nS:U - The use-after-free corrupts kernel heap memory within the same security authority; there is no VM, IOMMU, or sandbox boundary crossed.\nC:H - The callback reads 8 bytes of freed slab memory (tx-\u003enet at crypto.c:840) and then uses tx-\u003estats and that stale struct net pointer; once the ~320-byte kmalloc object is reclaimed with attacker-chosen data, the resulting pointer dereferences give a path to disclose arbitrary kernel memory.\nI:H - A reclaimed tipc_crypto yields a fully attacker-controlled tx-\u003estats, so this_cpu_inc(tx-\u003estats-\u003estat[STAT_ASYNC_OK]) becomes a repeatable arbitrary-address increment, and the controlled struct net * is passed into b-\u003emedia-\u003esend_msg() \u2014 both are standard building blocks for kernel privilege escalation.\nA:H - Dereferencing the freed per-netns tipc_crypto from the cryptd worker reliably oopses or panics the kernel, and the trigger can be repeated to keep the system down."
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CVE-2025-38079 (GCVE-0-2025-38079)
Vulnerability from cvelistv5 – Published: 2025-06-18 09:33 – Updated: 2026-10-15 01:06| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/5bff312b59b3f2a54… | |
| https://git.kernel.org/stable/c/bf7bba75b91539e93… | |
| https://git.kernel.org/stable/c/c3059d58f79fdfb22… | |
| https://git.kernel.org/stable/c/f0f3d09f53534ea38… | |
| https://git.kernel.org/stable/c/134daaba93193df9e… | |
| https://git.kernel.org/stable/c/2f45a8d64fb4ed483… | |
| https://git.kernel.org/stable/c/0346f4b742345d1c7… | |
| https://git.kernel.org/stable/c/b2df03ed4052e9712… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://cert-portal.siemens.com/productcert/html/… |
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
fe869cdb89c95d060c77eea20204d6c91f233b53 , < 5bff312b59b3f2a54ff504e4f4e47272b64f3633
(git)
Affected: fe869cdb89c95d060c77eea20204d6c91f233b53 , < bf7bba75b91539e93615f560893a599c1e1c98bf (git) Affected: fe869cdb89c95d060c77eea20204d6c91f233b53 , < c3059d58f79fdfb2201249c2741514e34562b547 (git) Affected: fe869cdb89c95d060c77eea20204d6c91f233b53 , < f0f3d09f53534ea385d55ced408f2b67059b16e4 (git) Affected: fe869cdb89c95d060c77eea20204d6c91f233b53 , < 134daaba93193df9e988524b5cd2f52d15eb1993 (git) Affected: fe869cdb89c95d060c77eea20204d6c91f233b53 , < 2f45a8d64fb4ed4830a4b3273834ecd6ca504896 (git) Affected: fe869cdb89c95d060c77eea20204d6c91f233b53 , < 0346f4b742345d1c733c977f3a7aef5a6419a967 (git) Affected: fe869cdb89c95d060c77eea20204d6c91f233b53 , < b2df03ed4052e97126267e8c13ad4204ea6ba9b6 (git) |
|
| Linux | Linux |
Affected:
2.6.38
Unaffected: 0 , < 2.6.38 (semver) Unaffected: 5.4.294 , ≤ 5.4.* (semver) Unaffected: 5.10.238 , ≤ 5.10.* (semver) Unaffected: 5.15.185 , ≤ 5.15.* (semver) Unaffected: 6.1.141 , ≤ 6.1.* (semver) Unaffected: 6.6.93 , ≤ 6.6.* (semver) Unaffected: 6.12.31 , ≤ 6.12.* (semver) Unaffected: 6.14.9 , ≤ 6.14.* (semver) Unaffected: 6.15 , ≤ * (original_commit_for_fix) |
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
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Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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