CWE-416
AllowedUse After Free
Abstraction: Variant · Status: Stable
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
9874 vulnerabilities reference this CWE, most recent first.
GHSA-C666-M54V-25M4
Vulnerability from github – Published: 2024-05-15 12:31 – Updated: 2024-05-15 12:31Acrobat Reader versions 20.005.30574, 24.002.20736 and earlier are affected by a Use After Free vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
{
"affected": [],
"aliases": [
"CVE-2024-34097"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-15T10:15:12Z",
"severity": "HIGH"
},
"details": "Acrobat Reader versions 20.005.30574, 24.002.20736 and earlier are affected by a Use After Free vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
"id": "GHSA-c666-m54v-25m4",
"modified": "2024-05-15T12:31:16Z",
"published": "2024-05-15T12:31:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-34097"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb24-29.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-C668-R5MR-QR6C
Vulnerability from github – Published: 2026-06-09 00:33 – Updated: 2026-06-09 12:32Use after free in Payments in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
{
"affected": [],
"aliases": [
"CVE-2026-11664"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-09T00:16:49Z",
"severity": "HIGH"
},
"details": "Use after free in Payments in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)",
"id": "GHSA-c668-r5mr-qr6c",
"modified": "2026-06-09T12:32:03Z",
"published": "2026-06-09T00:33:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-11664"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/513830374"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-C684-Q9WG-VHH9
Vulnerability from github – Published: 2025-09-22 21:30 – Updated: 2026-05-12 15:31In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: Fix use-after-free in l2cap_sock_cleanup_listen()
syzbot reported the splat below without a repro.
In the splat, a single thread calling bt_accept_dequeue() freed sk and touched it after that.
The root cause would be the racy l2cap_sock_cleanup_listen() call added by the cited commit.
bt_accept_dequeue() is called under lock_sock() except for l2cap_sock_release().
Two threads could see the same socket during the list iteration in bt_accept_dequeue():
CPU1 CPU2 (close()) ---- ---- sock_hold(sk) sock_hold(sk); lock_sock(sk) <-- block close() sock_put(sk) bt_accept_unlink(sk) sock_put(sk) <-- refcnt by bt_accept_enqueue() release_sock(sk) lock_sock(sk) sock_put(sk) bt_accept_unlink(sk) sock_put(sk) <-- last refcnt bt_accept_unlink(sk) <-- UAF
Depending on the timing, the other thread could show up in the "Freed by task" part.
Let's call l2cap_sock_cleanup_listen() under lock_sock() in l2cap_sock_release().
[0]: BUG: KASAN: slab-use-after-free in debug_spin_lock_before kernel/locking/spinlock_debug.c:86 [inline] BUG: KASAN: slab-use-after-free in do_raw_spin_lock+0x26f/0x2b0 kernel/locking/spinlock_debug.c:115 Read of size 4 at addr ffff88803b7eb1c4 by task syz.5.3276/16995 CPU: 3 UID: 0 PID: 16995 Comm: syz.5.3276 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xcd/0x630 mm/kasan/report.c:482 kasan_report+0xe0/0x110 mm/kasan/report.c:595 debug_spin_lock_before kernel/locking/spinlock_debug.c:86 [inline] do_raw_spin_lock+0x26f/0x2b0 kernel/locking/spinlock_debug.c:115 spin_lock_bh include/linux/spinlock.h:356 [inline] release_sock+0x21/0x220 net/core/sock.c:3746 bt_accept_dequeue+0x505/0x600 net/bluetooth/af_bluetooth.c:312 l2cap_sock_cleanup_listen+0x5c/0x2a0 net/bluetooth/l2cap_sock.c:1451 l2cap_sock_release+0x5c/0x210 net/bluetooth/l2cap_sock.c:1425 __sock_release+0xb3/0x270 net/socket.c:649 sock_close+0x1c/0x30 net/socket.c:1439 __fput+0x3ff/0xb70 fs/file_table.c:468 task_work_run+0x14d/0x240 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop+0xeb/0x110 kernel/entry/common.c:43 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x3f6/0x4c0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2accf8ebe9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffdb6cb1378 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00000000000426fb RCX: 00007f2accf8ebe9 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 00007f2acd1b7da0 R08: 0000000000000001 R09: 00000012b6cb166f R10: 0000001b30e20000 R11: 0000000000000246 R12: 00007f2acd1b609c R13: 00007f2acd1b6090 R14: ffffffffffffffff R15: 00007ffdb6cb1490
Allocated by task 5326: kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:388 [inline] __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:405 kasan_kmalloc include/linux/kasan.h:260 [inline] __do_kmalloc_node mm/slub.c:4365 [inline] __kmalloc_nopro ---truncated---
{
"affected": [],
"aliases": [
"CVE-2025-39860"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-09-19T16:15:44Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: Fix use-after-free in l2cap_sock_cleanup_listen()\n\nsyzbot reported the splat below without a repro.\n\nIn the splat, a single thread calling bt_accept_dequeue() freed sk\nand touched it after that.\n\nThe root cause would be the racy l2cap_sock_cleanup_listen() call\nadded by the cited commit.\n\nbt_accept_dequeue() is called under lock_sock() except for\nl2cap_sock_release().\n\nTwo threads could see the same socket during the list iteration\nin bt_accept_dequeue():\n\n CPU1 CPU2 (close())\n ---- ----\n sock_hold(sk) sock_hold(sk);\n lock_sock(sk) \u003c-- block close()\n sock_put(sk)\n bt_accept_unlink(sk)\n sock_put(sk) \u003c-- refcnt by bt_accept_enqueue()\n release_sock(sk)\n lock_sock(sk)\n sock_put(sk)\n bt_accept_unlink(sk)\n sock_put(sk) \u003c-- last refcnt\n bt_accept_unlink(sk) \u003c-- UAF\n\nDepending on the timing, the other thread could show up in the\n\"Freed by task\" part.\n\nLet\u0027s call l2cap_sock_cleanup_listen() under lock_sock() in\nl2cap_sock_release().\n\n[0]:\nBUG: KASAN: slab-use-after-free in debug_spin_lock_before kernel/locking/spinlock_debug.c:86 [inline]\nBUG: KASAN: slab-use-after-free in do_raw_spin_lock+0x26f/0x2b0 kernel/locking/spinlock_debug.c:115\nRead of size 4 at addr ffff88803b7eb1c4 by task syz.5.3276/16995\nCPU: 3 UID: 0 PID: 16995 Comm: syz.5.3276 Not tainted syzkaller #0 PREEMPT(full)\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:94 [inline]\n dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120\n print_address_description mm/kasan/report.c:378 [inline]\n print_report+0xcd/0x630 mm/kasan/report.c:482\n kasan_report+0xe0/0x110 mm/kasan/report.c:595\n debug_spin_lock_before kernel/locking/spinlock_debug.c:86 [inline]\n do_raw_spin_lock+0x26f/0x2b0 kernel/locking/spinlock_debug.c:115\n spin_lock_bh include/linux/spinlock.h:356 [inline]\n release_sock+0x21/0x220 net/core/sock.c:3746\n bt_accept_dequeue+0x505/0x600 net/bluetooth/af_bluetooth.c:312\n l2cap_sock_cleanup_listen+0x5c/0x2a0 net/bluetooth/l2cap_sock.c:1451\n l2cap_sock_release+0x5c/0x210 net/bluetooth/l2cap_sock.c:1425\n __sock_release+0xb3/0x270 net/socket.c:649\n sock_close+0x1c/0x30 net/socket.c:1439\n __fput+0x3ff/0xb70 fs/file_table.c:468\n task_work_run+0x14d/0x240 kernel/task_work.c:227\n resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]\n exit_to_user_mode_loop+0xeb/0x110 kernel/entry/common.c:43\n exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]\n syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]\n syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]\n do_syscall_64+0x3f6/0x4c0 arch/x86/entry/syscall_64.c:100\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f2accf8ebe9\nCode: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007ffdb6cb1378 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4\nRAX: 0000000000000000 RBX: 00000000000426fb RCX: 00007f2accf8ebe9\nRDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003\nRBP: 00007f2acd1b7da0 R08: 0000000000000001 R09: 00000012b6cb166f\nR10: 0000001b30e20000 R11: 0000000000000246 R12: 00007f2acd1b609c\nR13: 00007f2acd1b6090 R14: ffffffffffffffff R15: 00007ffdb6cb1490\n \u003c/TASK\u003e\n\nAllocated by task 5326:\n kasan_save_stack+0x33/0x60 mm/kasan/common.c:47\n kasan_save_track+0x14/0x30 mm/kasan/common.c:68\n poison_kmalloc_redzone mm/kasan/common.c:388 [inline]\n __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:405\n kasan_kmalloc include/linux/kasan.h:260 [inline]\n __do_kmalloc_node mm/slub.c:4365 [inline]\n __kmalloc_nopro\n---truncated---",
"id": "GHSA-c684-q9wg-vhh9",
"modified": "2026-05-12T15:31:10Z",
"published": "2025-09-22T21:30:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39860"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-032379.html"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-089022.html"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2ca99fc3512a8074de20ee52a87b492dfcc41a4d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/306b0991413b482dbf5585b423022123bb505966"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3dff390f55ccd9ce12e91233849769b5312180c2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/47f6090bcf75c369695d21c3f179db8a56bbbd49"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6077d16b5c0f65d571eee709de2f0541fb5ef0ca"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/83e1d9892ef51785cf0760b7681436760dda435a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/862c628108562d8c7a516a900034823b381d3cba"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/964cbb198f9c46c2b2358cd1faffc04c1e8248cf"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-C693-XQP6-3HP2
Vulnerability from github – Published: 2022-01-15 00:01 – Updated: 2022-01-22 00:01Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a use-after-free vulnerability in the processing of Format event actions that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
{
"affected": [],
"aliases": [
"CVE-2021-45062"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-01-14T20:15:00Z",
"severity": "HIGH"
},
"details": "Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a use-after-free vulnerability in the processing of Format event actions that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
"id": "GHSA-c693-xqp6-3hp2",
"modified": "2022-01-22T00:01:52Z",
"published": "2022-01-15T00:01:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-45062"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb22-01.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-C6C4-GFJC-9WRJ
Vulnerability from github – Published: 2025-07-25 18:30 – Updated: 2025-12-23 00:30In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix potential use-after-free in oplock/lease break ack
If ksmbd_iov_pin_rsp return error, use-after-free can happen by accessing opinfo->state and opinfo_put and ksmbd_fd_put could called twice.
{
"affected": [],
"aliases": [
"CVE-2025-38437"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-25T16:15:29Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix potential use-after-free in oplock/lease break ack\n\nIf ksmbd_iov_pin_rsp return error, use-after-free can happen by\naccessing opinfo-\u003estate and opinfo_put and ksmbd_fd_put could\ncalled twice.",
"id": "GHSA-c6c4-gfjc-9wrj",
"modified": "2025-12-23T00:30:29Z",
"published": "2025-07-25T18:30:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38437"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/50f930db22365738d9387c974416f38a06e8057e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8106adc21a2270c16abf69cd74ccd7c79c6e7acd"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/815f1161d6dbc4c54ccf94b7d3fdeab34b4d7477"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/97c355989928a5f60b228ef5266c1be67a46cdf9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e38ec88a2b42c494601b1213816d75f0b54d9bf0"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-C6C5-JMX4-J33P
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2026-50393"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T18:17:41Z",
"severity": "HIGH"
},
"details": "Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-c6c5-jmx4-j33p",
"modified": "2026-07-14T18:32:20Z",
"published": "2026-07-14T18:32:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50393"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50393"
}
],
"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-C6C6-6XM6-JHP9
Vulnerability from github – Published: 2025-03-27 18:31 – Updated: 2025-03-28 18:33In the Linux kernel, the following vulnerability has been resolved:
dmaengine: Fix double increment of client_count in dma_chan_get()
The first time dma_chan_get() is called for a channel the channel client_count is incorrectly incremented twice for public channels, first in balance_ref_count(), and again prior to returning. This results in an incorrect client count which will lead to the channel resources not being freed when they should be. A simple test of repeated module load and unload of async_tx on a Dell Power Edge R7425 also shows this resulting in a kref underflow warning.
[ 124.329662] async_tx: api initialized (async) [ 129.000627] async_tx: api initialized (async) [ 130.047839] ------------[ cut here ]------------ [ 130.052472] refcount_t: underflow; use-after-free. [ 130.057279] WARNING: CPU: 3 PID: 19364 at lib/refcount.c:28 refcount_warn_saturate+0xba/0x110 [ 130.065811] Modules linked in: async_tx(-) rfkill intel_rapl_msr intel_rapl_common amd64_edac edac_mce_amd ipmi_ssif kvm_amd dcdbas kvm mgag200 drm_shmem_helper acpi_ipmi irqbypass drm_kms_helper ipmi_si syscopyarea sysfillrect rapl pcspkr ipmi_devintf sysimgblt fb_sys_fops k10temp i2c_piix4 ipmi_msghandler acpi_power_meter acpi_cpufreq vfat fat drm fuse xfs libcrc32c sd_mod t10_pi sg ahci crct10dif_pclmul libahci crc32_pclmul crc32c_intel ghash_clmulni_intel igb megaraid_sas i40e libata i2c_algo_bit ccp sp5100_tco dca dm_mirror dm_region_hash dm_log dm_mod [last unloaded: async_tx] [ 130.117361] CPU: 3 PID: 19364 Comm: modprobe Kdump: loaded Not tainted 5.14.0-185.el9.x86_64 #1 [ 130.126091] Hardware name: Dell Inc. PowerEdge R7425/02MJ3T, BIOS 1.18.0 01/17/2022 [ 130.133806] RIP: 0010:refcount_warn_saturate+0xba/0x110 [ 130.139041] Code: 01 01 e8 6d bd 55 00 0f 0b e9 72 9d 8a 00 80 3d 26 18 9c 01 00 75 85 48 c7 c7 f8 a3 03 9d c6 05 16 18 9c 01 01 e8 4a bd 55 00 <0f> 0b e9 4f 9d 8a 00 80 3d 01 18 9c 01 00 0f 85 5e ff ff ff 48 c7 [ 130.157807] RSP: 0018:ffffbf98898afe68 EFLAGS: 00010286 [ 130.163036] RAX: 0000000000000000 RBX: ffff9da06028e598 RCX: 0000000000000000 [ 130.170172] RDX: ffff9daf9de26480 RSI: ffff9daf9de198a0 RDI: ffff9daf9de198a0 [ 130.177316] RBP: ffff9da7cddf3970 R08: 0000000000000000 R09: 00000000ffff7fff [ 130.184459] R10: ffffbf98898afd00 R11: ffffffff9d9e8c28 R12: ffff9da7cddf1970 [ 130.191596] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 130.198739] FS: 00007f646435c740(0000) GS:ffff9daf9de00000(0000) knlGS:0000000000000000 [ 130.206832] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 130.212586] CR2: 00007f6463b214f0 CR3: 00000008ab98c000 CR4: 00000000003506e0 [ 130.219729] Call Trace: [ 130.222192] [ 130.224305] dma_chan_put+0x10d/0x110 [ 130.227988] dmaengine_put+0x7a/0xa0 [ 130.231575] __do_sys_delete_module.constprop.0+0x178/0x280 [ 130.237157] ? syscall_trace_enter.constprop.0+0x145/0x1d0 [ 130.242652] do_syscall_64+0x5c/0x90 [ 130.246240] ? exc_page_fault+0x62/0x150 [ 130.250178] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 130.255243] RIP: 0033:0x7f6463a3f5ab [ 130.258830] Code: 73 01 c3 48 8b 0d 75 a8 1b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 b0 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 45 a8 1b 00 f7 d8 64 89 01 48 [ 130.277591] RSP: 002b:00007fff22f972c8 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0 [ 130.285164] RAX: ffffffffffffffda RBX: 000055b6786edd40 RCX: 00007f6463a3f5ab [ 130.292303] RDX: 0000000000000000 RSI: 0000000000000800 RDI: 000055b6786edda8 [ 130.299443] RBP: 000055b6786edd40 R08: 0000000000000000 R09: 0000000000000000 [ 130.306584] R10: 00007f6463b9eac0 R11: 0000000000000206 R12: 000055b6786edda8 [ 130.313731] R13: 0000000000000000 R14: 000055b6786edda8 R15: 00007fff22f995f8 [ 130.320875] [ 130.323081] ---[ end trace eff7156d56b5cf25 ]---
cat /sys/class/dma/dma0chan*/in_use would get the wrong result. 2 2 2
Test-by: Jie Hai haijie1@huawei.com
{
"affected": [],
"aliases": [
"CVE-2022-49753"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-27T17:15:40Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: Fix double increment of client_count in dma_chan_get()\n\nThe first time dma_chan_get() is called for a channel the channel\nclient_count is incorrectly incremented twice for public channels,\nfirst in balance_ref_count(), and again prior to returning. This\nresults in an incorrect client count which will lead to the\nchannel resources not being freed when they should be. A simple\n test of repeated module load and unload of async_tx on a Dell\n Power Edge R7425 also shows this resulting in a kref underflow\n warning.\n\n[ 124.329662] async_tx: api initialized (async)\n[ 129.000627] async_tx: api initialized (async)\n[ 130.047839] ------------[ cut here ]------------\n[ 130.052472] refcount_t: underflow; use-after-free.\n[ 130.057279] WARNING: CPU: 3 PID: 19364 at lib/refcount.c:28\nrefcount_warn_saturate+0xba/0x110\n[ 130.065811] Modules linked in: async_tx(-) rfkill intel_rapl_msr\nintel_rapl_common amd64_edac edac_mce_amd ipmi_ssif kvm_amd dcdbas kvm\nmgag200 drm_shmem_helper acpi_ipmi irqbypass drm_kms_helper ipmi_si\nsyscopyarea sysfillrect rapl pcspkr ipmi_devintf sysimgblt fb_sys_fops\nk10temp i2c_piix4 ipmi_msghandler acpi_power_meter acpi_cpufreq vfat\nfat drm fuse xfs libcrc32c sd_mod t10_pi sg ahci crct10dif_pclmul\nlibahci crc32_pclmul crc32c_intel ghash_clmulni_intel igb megaraid_sas\ni40e libata i2c_algo_bit ccp sp5100_tco dca dm_mirror dm_region_hash\ndm_log dm_mod [last unloaded: async_tx]\n[ 130.117361] CPU: 3 PID: 19364 Comm: modprobe Kdump: loaded Not\ntainted 5.14.0-185.el9.x86_64 #1\n[ 130.126091] Hardware name: Dell Inc. PowerEdge R7425/02MJ3T, BIOS\n1.18.0 01/17/2022\n[ 130.133806] RIP: 0010:refcount_warn_saturate+0xba/0x110\n[ 130.139041] Code: 01 01 e8 6d bd 55 00 0f 0b e9 72 9d 8a 00 80 3d\n26 18 9c 01 00 75 85 48 c7 c7 f8 a3 03 9d c6 05 16 18 9c 01 01 e8 4a\nbd 55 00 \u003c0f\u003e 0b e9 4f 9d 8a 00 80 3d 01 18 9c 01 00 0f 85 5e ff ff ff\n48 c7\n[ 130.157807] RSP: 0018:ffffbf98898afe68 EFLAGS: 00010286\n[ 130.163036] RAX: 0000000000000000 RBX: ffff9da06028e598 RCX: 0000000000000000\n[ 130.170172] RDX: ffff9daf9de26480 RSI: ffff9daf9de198a0 RDI: ffff9daf9de198a0\n[ 130.177316] RBP: ffff9da7cddf3970 R08: 0000000000000000 R09: 00000000ffff7fff\n[ 130.184459] R10: ffffbf98898afd00 R11: ffffffff9d9e8c28 R12: ffff9da7cddf1970\n[ 130.191596] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000\n[ 130.198739] FS: 00007f646435c740(0000) GS:ffff9daf9de00000(0000)\nknlGS:0000000000000000\n[ 130.206832] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 130.212586] CR2: 00007f6463b214f0 CR3: 00000008ab98c000 CR4: 00000000003506e0\n[ 130.219729] Call Trace:\n[ 130.222192] \u003cTASK\u003e\n[ 130.224305] dma_chan_put+0x10d/0x110\n[ 130.227988] dmaengine_put+0x7a/0xa0\n[ 130.231575] __do_sys_delete_module.constprop.0+0x178/0x280\n[ 130.237157] ? syscall_trace_enter.constprop.0+0x145/0x1d0\n[ 130.242652] do_syscall_64+0x5c/0x90\n[ 130.246240] ? exc_page_fault+0x62/0x150\n[ 130.250178] entry_SYSCALL_64_after_hwframe+0x63/0xcd\n[ 130.255243] RIP: 0033:0x7f6463a3f5ab\n[ 130.258830] Code: 73 01 c3 48 8b 0d 75 a8 1b 00 f7 d8 64 89 01 48\n83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa b8 b0 00 00\n00 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 8b 0d 45 a8 1b 00 f7 d8 64 89\n01 48\n[ 130.277591] RSP: 002b:00007fff22f972c8 EFLAGS: 00000206 ORIG_RAX:\n00000000000000b0\n[ 130.285164] RAX: ffffffffffffffda RBX: 000055b6786edd40 RCX: 00007f6463a3f5ab\n[ 130.292303] RDX: 0000000000000000 RSI: 0000000000000800 RDI: 000055b6786edda8\n[ 130.299443] RBP: 000055b6786edd40 R08: 0000000000000000 R09: 0000000000000000\n[ 130.306584] R10: 00007f6463b9eac0 R11: 0000000000000206 R12: 000055b6786edda8\n[ 130.313731] R13: 0000000000000000 R14: 000055b6786edda8 R15: 00007fff22f995f8\n[ 130.320875] \u003c/TASK\u003e\n[ 130.323081] ---[ end trace eff7156d56b5cf25 ]---\n\ncat /sys/class/dma/dma0chan*/in_use would get the wrong result.\n2\n2\n2\n\nTest-by: Jie Hai \u003chaijie1@huawei.com\u003e",
"id": "GHSA-c6c6-6xm6-jhp9",
"modified": "2025-03-28T18:33:11Z",
"published": "2025-03-27T18:31:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49753"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/142d644fd2cc059ffa042fbfb68e766433ef3afd"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/18dd3b30d4c7e8440c63118c7a7b687372b9567f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1b409e14b4b7af034e0450f95c165b6c5c87dbc1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/42ecd72f02cd657b00b559621e7ef7d2c4d3e5f1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/71c601965532c38030133535f7cd93c1efa75af1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c6221afe573413fd2981e291f7df4a58283e0654"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f3dc1b3b4750851a94212dba249703dd0e50bb20"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-C6CH-GP25-6CPV
Vulnerability from github – Published: 2024-08-06 18:30 – Updated: 2024-08-06 21:30Use after free in User Education in Google Chrome prior to 127.0.6533.72 allowed a remote attacker who convinced a user to engage in specific UI gestures to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)
{
"affected": [],
"aliases": [
"CVE-2024-6998"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-06T16:15:50Z",
"severity": "HIGH"
},
"details": "Use after free in User Education in Google Chrome prior to 127.0.6533.72 allowed a remote attacker who convinced a user to engage in specific UI gestures to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)",
"id": "GHSA-c6ch-gp25-6cpv",
"modified": "2024-08-06T21:30:47Z",
"published": "2024-08-06T18:30:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-6998"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2024/07/stable-channel-update-for-desktop_23.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/340098902"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-C6CQ-5J33-J5WH
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2026-57093"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T18:18:33Z",
"severity": "HIGH"
},
"details": "Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-c6cq-5j33-j5wh",
"modified": "2026-07-14T18:32:39Z",
"published": "2026-07-14T18:32:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-57093"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57093"
}
],
"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-C6M5-FCV9-26FC
Vulnerability from github – Published: 2022-05-24 16:47 – Updated: 2022-10-14 12:00This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.4.1.16828. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the removeField method when processing AcroForms. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-8164.
{
"affected": [],
"aliases": [
"CVE-2019-6768"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-06-03T19:29:00Z",
"severity": "HIGH"
},
"details": "This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.4.1.16828. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the removeField method when processing AcroForms. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-8164.",
"id": "GHSA-c6m5-fcv9-26fc",
"modified": "2022-10-14T12:00:25Z",
"published": "2022-05-24T16:47:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-6768"
},
{
"type": "WEB",
"url": "https://www.foxitsoftware.com/support/security-bulletins.php"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-19-442"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
Strategy: Language Selection
Choose a language that provides automatic memory management.
Mitigation
Strategy: Attack Surface Reduction
When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.
No CAPEC attack patterns related to this CWE.