CWE-362
Allowed-with-ReviewConcurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Abstraction: Class · Status: Draft
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
3085 vulnerabilities reference this CWE, most recent first.
GHSA-22X4-J6VJ-FMM5
Vulnerability from github – Published: 2024-12-27 15:31 – Updated: 2025-11-03 21:32In the Linux kernel, the following vulnerability has been resolved:
bpf, sockmap: Fix race between element replace and close()
Element replace (with a socket different from the one stored) may race with socket's close() link popping & unlinking. __sock_map_delete() unconditionally unrefs the (wrong) element:
// set map[0] = s0 map_update_elem(map, 0, s0)
// drop fd of s0 close(s0) sock_map_close() lock_sock(sk) (s0!) sock_map_remove_links(sk) link = sk_psock_link_pop() sock_map_unlink(sk, link) sock_map_delete_from_link // replace map[0] with s1 map_update_elem(map, 0, s1) sock_map_update_elem (s1!) lock_sock(sk) sock_map_update_common psock = sk_psock(sk) spin_lock(&stab->lock) osk = stab->sks[idx] sock_map_add_link(..., &stab->sks[idx]) sock_map_unref(osk, &stab->sks[idx]) psock = sk_psock(osk) sk_psock_put(sk, psock) if (refcount_dec_and_test(&psock)) sk_psock_drop(sk, psock) spin_unlock(&stab->lock) unlock_sock(sk) __sock_map_delete spin_lock(&stab->lock) sk = *psk // s1 replaced s0; sk == s1 if (!sk_test || sk_test == sk) // sk_test (s0) != sk (s1); no branch sk = xchg(psk, NULL) if (sk) sock_map_unref(sk, psk) // unref s1; sks[idx] will dangle psock = sk_psock(sk) sk_psock_put(sk, psock) if (refcount_dec_and_test()) sk_psock_drop(sk, psock) spin_unlock(&stab->lock) release_sock(sk)
Then close(map) enqueues bpf_map_free_deferred, which finally calls sock_map_free(). This results in some refcount_t warnings along with a KASAN splat [1].
Fix __sock_map_delete(), do not allow sock_map_unref() on elements that may have been replaced.
[1]: BUG: KASAN: slab-use-after-free in sock_map_free+0x10e/0x330 Write of size 4 at addr ffff88811f5b9100 by task kworker/u64:12/1063
CPU: 14 UID: 0 PID: 1063 Comm: kworker/u64:12 Not tainted 6.12.0+ #125 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014 Workqueue: events_unbound bpf_map_free_deferred Call Trace: dump_stack_lvl+0x68/0x90 print_report+0x174/0x4f6 kasan_report+0xb9/0x190 kasan_check_range+0x10f/0x1e0 sock_map_free+0x10e/0x330 bpf_map_free_deferred+0x173/0x320 process_one_work+0x846/0x1420 worker_thread+0x5b3/0xf80 kthread+0x29e/0x360 ret_from_fork+0x2d/0x70 ret_from_fork_asm+0x1a/0x30
Allocated by task 1202: kasan_save_stack+0x1e/0x40 kasan_save_track+0x10/0x30 __kasan_slab_alloc+0x85/0x90 kmem_cache_alloc_noprof+0x131/0x450 sk_prot_alloc+0x5b/0x220 sk_alloc+0x2c/0x870 unix_create1+0x88/0x8a0 unix_create+0xc5/0x180 __sock_create+0x241/0x650 __sys_socketpair+0x1ce/0x420 __x64_sys_socketpair+0x92/0x100 do_syscall_64+0x93/0x180 entry_SYSCALL_64_after_hwframe+0x76/0x7e
Freed by task 46: kasan_save_stack+0x1e/0x40 kasan_save_track+0x10/0x30 kasan_save_free_info+0x37/0x60 __kasan_slab_free+0x4b/0x70 kmem_cache_free+0x1a1/0x590 __sk_destruct+0x388/0x5a0 sk_psock_destroy+0x73e/0xa50 process_one_work+0x846/0x1420 worker_thread+0x5b3/0xf80 kthread+0x29e/0x360 ret_from_fork+0x2d/0x70 ret_from_fork_asm+0x1a/0x30
The bu ---truncated---
{
"affected": [],
"aliases": [
"CVE-2024-56664"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-27T15:15:26Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf, sockmap: Fix race between element replace and close()\n\nElement replace (with a socket different from the one stored) may race\nwith socket\u0027s close() link popping \u0026 unlinking. __sock_map_delete()\nunconditionally unrefs the (wrong) element:\n\n// set map[0] = s0\nmap_update_elem(map, 0, s0)\n\n// drop fd of s0\nclose(s0)\n sock_map_close()\n lock_sock(sk) (s0!)\n sock_map_remove_links(sk)\n link = sk_psock_link_pop()\n sock_map_unlink(sk, link)\n sock_map_delete_from_link\n // replace map[0] with s1\n map_update_elem(map, 0, s1)\n sock_map_update_elem\n (s1!) lock_sock(sk)\n sock_map_update_common\n psock = sk_psock(sk)\n spin_lock(\u0026stab-\u003elock)\n osk = stab-\u003esks[idx]\n sock_map_add_link(..., \u0026stab-\u003esks[idx])\n sock_map_unref(osk, \u0026stab-\u003esks[idx])\n psock = sk_psock(osk)\n sk_psock_put(sk, psock)\n if (refcount_dec_and_test(\u0026psock))\n sk_psock_drop(sk, psock)\n spin_unlock(\u0026stab-\u003elock)\n unlock_sock(sk)\n __sock_map_delete\n spin_lock(\u0026stab-\u003elock)\n sk = *psk // s1 replaced s0; sk == s1\n if (!sk_test || sk_test == sk) // sk_test (s0) != sk (s1); no branch\n sk = xchg(psk, NULL)\n if (sk)\n sock_map_unref(sk, psk) // unref s1; sks[idx] will dangle\n psock = sk_psock(sk)\n sk_psock_put(sk, psock)\n if (refcount_dec_and_test())\n sk_psock_drop(sk, psock)\n spin_unlock(\u0026stab-\u003elock)\n release_sock(sk)\n\nThen close(map) enqueues bpf_map_free_deferred, which finally calls\nsock_map_free(). This results in some refcount_t warnings along with\na KASAN splat [1].\n\nFix __sock_map_delete(), do not allow sock_map_unref() on elements that\nmay have been replaced.\n\n[1]:\nBUG: KASAN: slab-use-after-free in sock_map_free+0x10e/0x330\nWrite of size 4 at addr ffff88811f5b9100 by task kworker/u64:12/1063\n\nCPU: 14 UID: 0 PID: 1063 Comm: kworker/u64:12 Not tainted 6.12.0+ #125\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014\nWorkqueue: events_unbound bpf_map_free_deferred\nCall Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x68/0x90\n print_report+0x174/0x4f6\n kasan_report+0xb9/0x190\n kasan_check_range+0x10f/0x1e0\n sock_map_free+0x10e/0x330\n bpf_map_free_deferred+0x173/0x320\n process_one_work+0x846/0x1420\n worker_thread+0x5b3/0xf80\n kthread+0x29e/0x360\n ret_from_fork+0x2d/0x70\n ret_from_fork_asm+0x1a/0x30\n \u003c/TASK\u003e\n\nAllocated by task 1202:\n kasan_save_stack+0x1e/0x40\n kasan_save_track+0x10/0x30\n __kasan_slab_alloc+0x85/0x90\n kmem_cache_alloc_noprof+0x131/0x450\n sk_prot_alloc+0x5b/0x220\n sk_alloc+0x2c/0x870\n unix_create1+0x88/0x8a0\n unix_create+0xc5/0x180\n __sock_create+0x241/0x650\n __sys_socketpair+0x1ce/0x420\n __x64_sys_socketpair+0x92/0x100\n do_syscall_64+0x93/0x180\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nFreed by task 46:\n kasan_save_stack+0x1e/0x40\n kasan_save_track+0x10/0x30\n kasan_save_free_info+0x37/0x60\n __kasan_slab_free+0x4b/0x70\n kmem_cache_free+0x1a1/0x590\n __sk_destruct+0x388/0x5a0\n sk_psock_destroy+0x73e/0xa50\n process_one_work+0x846/0x1420\n worker_thread+0x5b3/0xf80\n kthread+0x29e/0x360\n ret_from_fork+0x2d/0x70\n ret_from_fork_asm+0x1a/0x30\n\nThe bu\n---truncated---",
"id": "GHSA-22x4-j6vj-fmm5",
"modified": "2025-11-03T21:32:00Z",
"published": "2024-12-27T15:31:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56664"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6deb9e85dc9a2ba4414b91c1b5b00b8415910890"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b015f19fedd2e12283a8450dd0aefce49ec57015"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b79a0d1e9a374d1b376933a354c4fcd01fce0365"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bf2318e288f636a882eea39f7e1015623629f168"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ed1fc5d76b81a4d681211333c026202cad4d5649"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fdb2cd8957ac51f84c9e742ba866087944bb834b"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-22X7-MC8G-7JG9
Vulnerability from github – Published: 2025-12-08 09:30 – Updated: 2025-12-08 09:30Race condition vulnerability in the audio module. Impact: Successful exploitation of this vulnerability may affect availability.
{
"affected": [],
"aliases": [
"CVE-2025-66326"
],
"database_specific": {
"cwe_ids": [
"CWE-362",
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-08T08:15:54Z",
"severity": "MODERATE"
},
"details": "Race condition vulnerability in the audio module. Impact: Successful exploitation of this vulnerability may affect availability.",
"id": "GHSA-22x7-mc8g-7jg9",
"modified": "2025-12-08T09:30:18Z",
"published": "2025-12-08T09:30:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-66326"
},
{
"type": "WEB",
"url": "https://consumer.huawei.com/en/support/bulletin/2025/12"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-2346-6PQF-J299
Vulnerability from github – Published: 2022-11-10 12:01 – Updated: 2022-11-10 12:01Windows Group Policy Elevation of Privilege Vulnerability. This CVE ID is unique from CVE-2022-37992.
{
"affected": [],
"aliases": [
"CVE-2022-41086"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-11-09T22:15:00Z",
"severity": "MODERATE"
},
"details": "Windows Group Policy Elevation of Privilege Vulnerability. This CVE ID is unique from CVE-2022-37992.",
"id": "GHSA-2346-6pqf-j299",
"modified": "2022-11-10T12:01:08Z",
"published": "2022-11-10T12:01:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-41086"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41086"
},
{
"type": "WEB",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-41086"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-236C-586C-7Q48
Vulnerability from github – Published: 2025-08-03 00:30 – Updated: 2025-08-03 00:30OpenNebula Community Edition (CE) before 7.0.0 and Enterprise Edition (EE) before 6.10.3 have a critical FireEdge race condition that can lead to full account takeover. By exploiting this, an unauthenticated attacker can obtain a valid JSON Web Token (JWT) belonging to a legitimate user without knowledge of their credentials.
{
"affected": [],
"aliases": [
"CVE-2025-54955"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-03T00:15:25Z",
"severity": "HIGH"
},
"details": "OpenNebula Community Edition (CE) before 7.0.0 and Enterprise Edition (EE) before 6.10.3 have a critical FireEdge race condition that can lead to full account takeover. By exploiting this, an unauthenticated attacker can obtain a valid JSON Web Token (JWT) belonging to a legitimate user without knowledge of their credentials.",
"id": "GHSA-236c-586c-7q48",
"modified": "2025-08-03T00:30:25Z",
"published": "2025-08-03T00:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54955"
},
{
"type": "WEB",
"url": "https://github.com/OpenNebula/one/commit/81058d9705e7ac619d294423de28b76d88f613b6"
},
{
"type": "WEB",
"url": "https://docs.opennebula.io/6.10/intro_release_notes/release_notes_enterprise/resolved_issues_6103.html"
},
{
"type": "WEB",
"url": "https://github.com/OpenNebula/one"
},
{
"type": "WEB",
"url": "https://github.com/OpenNebula/one/releases/tag/release-7.0.0"
},
{
"type": "WEB",
"url": "https://github.com/Stolichnayer/OpenNebula-Account-Takeover"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-2377-3VVP-RHHQ
Vulnerability from github – Published: 2026-06-24 18:32 – Updated: 2026-07-23 21:30In the Linux kernel, the following vulnerability has been resolved:
powerpc/64s: Fix unmap race with PMD migration entries
The following race is possible with migration swap entries or device-private THP entries. e.g. when move_pages is called on a PMD THP page, then there maybe an intermediate state, where PMD entry acts as a migration swap entry (pmd_present() is true). Then if an munmap happens at the same time, then this VM_BUG_ON() can happen in pmdp_huge_get_and_clear_full().
This patch fixes that.
Thread A: move_pages() syscall add_folio_for_migration() mmap_read_lock(mm) folio_isolate_lru(folio) mmap_read_unlock(mm)
do_move_pages_to_node() migrate_pages() try_to_migrate_one() spin_lock(ptl) set_pmd_migration_entry() pmdp_invalidate() # PMD: _PAGE_INVALID | _PAGE_PTE | pfn set_pmd_at() # PMD: migration swap entry (pmd_present=0) spin_unlock(ptl) [page copy phase] # <--- RACE WINDOW -->
Thread B: munmap() mmap_write_downgrade(mm) unmap_vmas() -> zap_pmd_range() zap_huge_pmd() __pmd_trans_huge_lock() pmd_is_huge(): # !pmd_present && !pmd_none -> TRUE (swap entry) pmd_lock() -> # spin_lock(ptl), waits for Thread A to release ptl pmdp_huge_get_and_clear_full() VM_BUG_ON(!pmd_present(*pmdp)) # HITS!
[ 287.738700][ T1867] ------------[ cut here ]------------ [ 287.743843][ T1867] kernel BUG at arch/powerpc/mm/book3s64/pgtable.c:187! cpu 0x0: Vector: 700 (Program Check) at [c00000044037f4f0] pc: c000000000094ca4: pmdp_huge_get_and_clear_full+0x6c/0x23c lr: c000000000645dec: zap_huge_pmd+0xb0/0x868 sp: c00000044037f790 msr: 800000000282b033 current = 0xc0000004032c1a00 paca = 0xc000000004fe0000 irqmask: 0x03 irq_happened: 0x09 pid = 1867, comm = a.out kernel BUG at :187! Linux version 6.19.0-12136-g14360d4f917c-dirty (powerpc64le-linux-gnu-gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) #27 SMP PREEMPT Sun Feb 22 10:38:56 IST 2026 enter ? for help [link register ] c000000000645dec zap_huge_pmd+0xb0/0x868 [c00000044037f790] c00000044037f7d0 (unreliable) [c00000044037f7d0] c000000000645dcc zap_huge_pmd+0x90/0x868 [c00000044037f840] c0000000005724cc unmap_page_range+0x176c/0x1f40 [c00000044037fa00] c000000000572ea0 unmap_vmas+0xb0/0x1d8 [c00000044037fa90] c0000000005af254 unmap_region+0xb4/0x128 [c00000044037fb50] c0000000005af400 vms_complete_munmap_vmas+0x138/0x310 [c00000044037fbe0] c0000000005b0f1c do_vmi_align_munmap+0x1ec/0x238 [c00000044037fd30] c0000000005b3688 __vm_munmap+0x170/0x1f8 [c00000044037fdf0] c000000000587f74 sys_munmap+0x2c/0x40 [c00000044037fe10] c000000000032668 system_call_exception+0x128/0x350 [c00000044037fe50] c00000000000d05c system_call_vectored_common+0x15c/0x2ec ---- Exception: 3000 (System Call Vectored) at 0000000010064a2c SP (7fff9b1ee9c0) is in userspace 0:mon> zh
commit a30b48bf1b24 ("mm/migrate_device: implement THP migration of zone device pages"), enabled migration for device-private PMD entries. Hence this is one other path where this warning could get trigger from.
------------[ cut here ]------------ WARNING: arch/powerpc/mm/book3s64/hash_pgtable.c:199 at hash__pmd_hugepage_update+0x48/0x284, CPU#3: hmm-tests/1905 Modules linked in: test_hmm CPU: 3 UID: 0 PID: 1905 Comm: hmm-tests Tainted: G B W L N 7.0.0-rc1-01438-g7e2f0ee7581c #21 PREEMPT Tainted: [B]=BAD_PAGE, [W]=WARN, [L]=SOFTLOCKUP, [N]=TEST Hardware name: IBM pSeries (emulated by qemu) POWER10 (architected) 0x801200 0xf000006 of:SLOF,git-ee03ae pSeries NIP [c000000000096b70] hash__pmd_hugepage_update+0x48/0x284 LR [c000000000096e7c] hash__pmdp_huge_get_and_clear+0xd0/0xd4 Call Trace: [c000000604707670] [c000000004e102b8] 0xc000000004e102b8 (unreliable) [c000000604707700] [c00000000064ec3c] set_pmd_migration_entry+0x414/0x498 [c000000604707760] [c00000000063e5a4] migrate_vma_col ---truncated---
{
"affected": [],
"aliases": [
"CVE-2026-53108"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-24T17:17:25Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/64s: Fix unmap race with PMD migration entries\n\nThe following race is possible with migration swap entries or\ndevice-private THP entries. e.g. when move_pages is called on a PMD THP\npage, then there maybe an intermediate state, where PMD entry acts as\na migration swap entry (pmd_present() is true). Then if an munmap\nhappens at the same time, then this VM_BUG_ON() can happen in\npmdp_huge_get_and_clear_full().\n\nThis patch fixes that.\n\nThread A: move_pages() syscall\n add_folio_for_migration()\n mmap_read_lock(mm)\n folio_isolate_lru(folio)\n mmap_read_unlock(mm)\n\n do_move_pages_to_node()\n migrate_pages()\n try_to_migrate_one()\n spin_lock(ptl)\n set_pmd_migration_entry()\n pmdp_invalidate() # PMD: _PAGE_INVALID | _PAGE_PTE | pfn\n set_pmd_at() # PMD: migration swap entry (pmd_present=0)\n spin_unlock(ptl)\n [page copy phase] # \u003c--- RACE WINDOW --\u003e\n\nThread B: munmap()\n mmap_write_downgrade(mm)\n unmap_vmas() -\u003e zap_pmd_range()\n zap_huge_pmd()\n __pmd_trans_huge_lock()\n pmd_is_huge(): # !pmd_present \u0026\u0026 !pmd_none -\u003e TRUE (swap entry)\n pmd_lock() -\u003e \t\t# spin_lock(ptl), waits for Thread A to release ptl\n pmdp_huge_get_and_clear_full()\n VM_BUG_ON(!pmd_present(*pmdp)) # HITS!\n\n[ 287.738700][ T1867] ------------[ cut here ]------------\n[ 287.743843][ T1867] kernel BUG at arch/powerpc/mm/book3s64/pgtable.c:187!\ncpu 0x0: Vector: 700 (Program Check) at [c00000044037f4f0]\n pc: c000000000094ca4: pmdp_huge_get_and_clear_full+0x6c/0x23c\n lr: c000000000645dec: zap_huge_pmd+0xb0/0x868\n sp: c00000044037f790\n msr: 800000000282b033\n current = 0xc0000004032c1a00\n paca = 0xc000000004fe0000 irqmask: 0x03 irq_happened: 0x09\n pid = 1867, comm = a.out\nkernel BUG at :187!\nLinux version 6.19.0-12136-g14360d4f917c-dirty (powerpc64le-linux-gnu-gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) #27 SMP PREEMPT Sun Feb 22 10:38:56 IST 2026\nenter ? for help\n[link register ] c000000000645dec zap_huge_pmd+0xb0/0x868\n[c00000044037f790] c00000044037f7d0 (unreliable)\n[c00000044037f7d0] c000000000645dcc zap_huge_pmd+0x90/0x868\n[c00000044037f840] c0000000005724cc unmap_page_range+0x176c/0x1f40\n[c00000044037fa00] c000000000572ea0 unmap_vmas+0xb0/0x1d8\n[c00000044037fa90] c0000000005af254 unmap_region+0xb4/0x128\n[c00000044037fb50] c0000000005af400 vms_complete_munmap_vmas+0x138/0x310\n[c00000044037fbe0] c0000000005b0f1c do_vmi_align_munmap+0x1ec/0x238\n[c00000044037fd30] c0000000005b3688 __vm_munmap+0x170/0x1f8\n[c00000044037fdf0] c000000000587f74 sys_munmap+0x2c/0x40\n[c00000044037fe10] c000000000032668 system_call_exception+0x128/0x350\n[c00000044037fe50] c00000000000d05c system_call_vectored_common+0x15c/0x2ec\n---- Exception: 3000 (System Call Vectored) at 0000000010064a2c\nSP (7fff9b1ee9c0) is in userspace\n0:mon\u003e zh\n\ncommit a30b48bf1b24 (\"mm/migrate_device: implement THP migration of zone device pages\"),\nenabled migration for device-private PMD entries. Hence this is one\nother path where this warning could get trigger from.\n\n ------------[ cut here ]------------\n WARNING: arch/powerpc/mm/book3s64/hash_pgtable.c:199 at hash__pmd_hugepage_update+0x48/0x284, CPU#3: hmm-tests/1905\n Modules linked in: test_hmm\n CPU: 3 UID: 0 PID: 1905 Comm: hmm-tests Tainted: G B W L N 7.0.0-rc1-01438-g7e2f0ee7581c #21 PREEMPT\n Tainted: [B]=BAD_PAGE, [W]=WARN, [L]=SOFTLOCKUP, [N]=TEST\n Hardware name: IBM pSeries (emulated by qemu) POWER10 (architected) 0x801200 0xf000006 of:SLOF,git-ee03ae pSeries\n NIP [c000000000096b70] hash__pmd_hugepage_update+0x48/0x284\n LR [c000000000096e7c] hash__pmdp_huge_get_and_clear+0xd0/0xd4\n Call Trace:\n [c000000604707670] [c000000004e102b8] 0xc000000004e102b8 (unreliable)\n [c000000604707700] [c00000000064ec3c] set_pmd_migration_entry+0x414/0x498\n [c000000604707760] [c00000000063e5a4] migrate_vma_col\n---truncated---",
"id": "GHSA-2377-3vvp-rhhq",
"modified": "2026-07-23T21:30:34Z",
"published": "2026-06-24T18:32:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53108"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/829367e55012c053738ebe7db20c4a90d6609ece"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bbcbf045d6c778e82b47a35fc8728387708e9a3d"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-239G-CRQJ-QCFP
Vulnerability from github – Published: 2022-05-02 03:50 – Updated: 2022-05-02 03:50Race condition in the mac80211 subsystem in the Linux kernel before 2.6.32-rc8-next-20091201 allows remote attackers to cause a denial of service (system crash) via a Delete Block ACK (aka DELBA) packet that triggers a certain state change in the absence of an aggregation session.
{
"affected": [],
"aliases": [
"CVE-2009-4027"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2009-12-02T16:30:00Z",
"severity": "HIGH"
},
"details": "Race condition in the mac80211 subsystem in the Linux kernel before 2.6.32-rc8-next-20091201 allows remote attackers to cause a denial of service (system crash) via a Delete Block ACK (aka DELBA) packet that triggers a certain state change in the absence of an aggregation session.",
"id": "GHSA-239g-crqj-qcfp",
"modified": "2022-05-02T03:50:46Z",
"published": "2022-05-02T03:50:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2009-4027"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2010:0178"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2010:0380"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2009-4027"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=541149"
},
{
"type": "WEB",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11583"
},
{
"type": "WEB",
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=827d42c9ac91ddd728e4f4a31fefb906ef2ceff7"
},
{
"type": "WEB",
"url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=827d42c9ac91ddd728e4f4a31fefb906ef2ceff7"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00000.html"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/38017"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/38492"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2010/dsa-1996"
},
{
"type": "WEB",
"url": "http://www.kernel.org/pub/linux/kernel/v2.6/next/patch-v2.6.32-rc8-next-20091201.gz"
},
{
"type": "WEB",
"url": "http://www.redhat.com/support/errata/RHSA-2010-0380.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/37170"
},
{
"type": "WEB",
"url": "http://www.ubuntu.com/usn/usn-864-1"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-23FC-P3PH-RJ82
Vulnerability from github – Published: 2022-05-17 04:30 – Updated: 2022-05-17 04:30Race condition in the IP logging feature in Cisco Intrusion Prevention System (IPS) Software 7.1(7)E4 and earlier allows remote attackers to cause a denial of service (device reload) via crafted IP traffic that matches a problematic rule, aka Bug ID CSCud82085.
{
"affected": [],
"aliases": [
"CVE-2014-3406"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2014-10-19T01:55:00Z",
"severity": "HIGH"
},
"details": "Race condition in the IP logging feature in Cisco Intrusion Prevention System (IPS) Software 7.1(7)E4 and earlier allows remote attackers to cause a denial of service (device reload) via crafted IP traffic that matches a problematic rule, aka Bug ID CSCud82085.",
"id": "GHSA-23fc-p3ph-rj82",
"modified": "2022-05-17T04:30:46Z",
"published": "2022-05-17T04:30:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2014-3406"
},
{
"type": "WEB",
"url": "http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3406"
},
{
"type": "WEB",
"url": "http://tools.cisco.com/security/center/viewAlert.x?alertId=36078"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-23JC-966Q-FMW3
Vulnerability from github – Published: 2022-05-24 16:47 – Updated: 2024-04-04 00:54In callGenIDChangeListeners and related functions of SkPixelRef.cpp, there is a possible use after free due to a race condition. This could lead to remote code execution with no additional execution privileges needed. User interaction is needed for exploitation. Product: Android. Versions: Android-9. Android ID: A-124232283.
{
"affected": [],
"aliases": [
"CVE-2019-2095"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-06-07T20:29:00Z",
"severity": "HIGH"
},
"details": "In callGenIDChangeListeners and related functions of SkPixelRef.cpp, there is a possible use after free due to a race condition. This could lead to remote code execution with no additional execution privileges needed. User interaction is needed for exploitation. Product: Android. Versions: Android-9. Android ID: A-124232283.",
"id": "GHSA-23jc-966q-fmw3",
"modified": "2024-04-04T00:54:33Z",
"published": "2022-05-24T16:47:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-2095"
},
{
"type": "WEB",
"url": "https://source.android.com/security/bulletin/2019-06-01"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-23QQ-P4GQ-GC2G
Vulnerability from github – Published: 2024-05-06 00:30 – Updated: 2025-01-21 18:28WordOps through 3.20.0 has a wo/cli/plugins/stack_pref.py TOCTOU race condition because the conf_path os.open does not use a mode parameter during file creation.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "wordops"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.21.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2024-34528"
],
"database_specific": {
"cwe_ids": [
"CWE-362",
"CWE-367"
],
"github_reviewed": true,
"github_reviewed_at": "2024-05-06T14:35:39Z",
"nvd_published_at": "2024-05-06T00:15:10Z",
"severity": "MODERATE"
},
"details": "WordOps through 3.20.0 has a `wo/cli/plugins/stack_pref.py` TOCTOU race condition because the `conf_path` `os.open` does not use a mode parameter during file creation.",
"id": "GHSA-23qq-p4gq-gc2g",
"modified": "2025-01-21T18:28:26Z",
"published": "2024-05-06T00:30:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-34528"
},
{
"type": "WEB",
"url": "https://github.com/WordOps/WordOps/issues/611"
},
{
"type": "WEB",
"url": "https://github.com/WordOps/WordOps/commit/31353f0fef14ad8bc1f61c028971bd30b9e1909b"
},
{
"type": "PACKAGE",
"url": "https://github.com/WordOps/WordOps"
},
{
"type": "WEB",
"url": "https://github.com/WordOps/WordOps/blob/ecf20192c7853925e2cb3f8c8378cd0d86ca0d62/wo/cli/plugins/stack_pref.py#L77"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/wordops/PYSEC-2024-175.yaml"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U",
"type": "CVSS_V4"
}
],
"summary": "WordOps has TOCTOU race condition"
}
GHSA-23VM-FC59-7QJV
Vulnerability from github – Published: 2022-05-24 17:05 – Updated: 2022-05-24 17:05During the initialization of a new content process, a race condition occurs that can allow a content process to disclose heap addresses from the parent process. Note: this issue only occurs on Windows. Other operating systems are unaffected.. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.
{
"affected": [],
"aliases": [
"CVE-2019-17021"
],
"database_specific": {
"cwe_ids": [
"CWE-200",
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-01-08T22:15:00Z",
"severity": "LOW"
},
"details": "During the initialization of a new content process, a race condition occurs that can allow a content process to disclose heap addresses from the parent process. *Note: this issue only occurs on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR \u003c 68.4 and Firefox \u003c 72.",
"id": "GHSA-23vm-fc59-7qjv",
"modified": "2022-05-24T17:05:50Z",
"published": "2022-05-24T17:05:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-17021"
},
{
"type": "WEB",
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1599008"
},
{
"type": "WEB",
"url": "https://seclists.org/bugtraq/2020/Jan/18"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2020-01"
},
{
"type": "WEB",
"url": "https://www.mozilla.org/security/advisories/mfsa2020-02"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00029.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00043.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/155912/Slackware-Security-Advisory-mozilla-thunderbird-Updates.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
Mitigation
In languages that support it, use synchronization primitives. Only wrap these around critical code to minimize the impact on performance.
Mitigation
Use thread-safe capabilities such as the data access abstraction in Spring.
Mitigation
- Minimize the usage of shared resources in order to remove as much complexity as possible from the control flow and to reduce the likelihood of unexpected conditions occurring.
- Additionally, this will minimize the amount of synchronization necessary and may even help to reduce the likelihood of a denial of service where an attacker may be able to repeatedly trigger a critical section (CWE-400).
Mitigation
When using multithreading and operating on shared variables, only use thread-safe functions.
Mitigation
Use atomic operations on shared variables. Be wary of innocent-looking constructs such as "x++". This may appear atomic at the code layer, but it is actually non-atomic at the instruction layer, since it involves a read, followed by a computation, followed by a write.
Mitigation
Use a mutex if available, but be sure to avoid related weaknesses such as CWE-412.
Mitigation
Avoid double-checked locking (CWE-609) and other implementation errors that arise when trying to avoid the overhead of synchronization.
Mitigation
Disable interrupts or signals over critical parts of the code, but also make sure that the code does not go into a large or infinite loop.
Mitigation
Use the volatile type modifier for critical variables to avoid unexpected compiler optimization or reordering. This does not necessarily solve the synchronization problem, but it can help.
Mitigation MIT-17
Strategy: Environment Hardening
Run your code using the lowest privileges that are required to accomplish the necessary tasks [REF-76]. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment. For example, database applications rarely need to run as the database administrator, especially in day-to-day operations.
CAPEC-26: Leveraging Race Conditions
The adversary targets a race condition occurring when multiple processes access and manipulate the same resource concurrently, and the outcome of the execution depends on the particular order in which the access takes place. The adversary can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance, a race condition can occur while accessing a file: the adversary can trick the system by replacing the original file with their version and cause the system to read the malicious file.
CAPEC-29: Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions
This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. A typical example is file access. The adversary can leverage a file access race condition by "running the race", meaning that they would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the adversary could replace or modify the file, causing the application to behave unexpectedly.