CVE-2022-49925
Estado: ModificadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
RDMA/core: Fix null-ptr-deref in ib_core_cleanup()
It is because the fail of roce_gid_mgmt_init() is ignored:
Fix this by catching the fail of roce_gid_mgmt_init() in ib_core_init().
Detalles técnicos trazas, registros y código del informe original
KASAN reported a null-ptr-deref error:
KASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f]
CPU: 1 PID: 379
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996)
RIP: 0010:destroy_workqueue+0x2f/0x740
RSP: 0018:ffff888016137df8 EFLAGS: 00000202
...
Call Trace:
ib_core_cleanup+0xa/0xa1 [ib_core]
__do_sys_delete_module.constprop.0+0x34f/0x5b0
do_syscall_64+0x3a/0x90
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa1a0d221b7
...
ib_core_init()
roce_gid_mgmt_init()
gid_cache_wq = alloc_ordered_workqueue # fail
...
ib_core_cleanup()
roce_gid_mgmt_cleanup()
destroy_workqueue(gid_cache_wq)
# destroy an unallocated wqCVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.20%
- Percentil entre todas las CVEs puntuadas: 9
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-476
- CWE-476
Referencias
- https://git.kernel.org/stable/c/07c0d131cc0fe1f3981a42958fc52d573d303d89
- https://git.kernel.org/stable/c/6b3d5dcb12347f3518308c2c9d2cf72453a3e1e5
- https://git.kernel.org/stable/c/ab817f75e5e0fa58d9be0825da6a7b7d8a1fa1d9
- https://git.kernel.org/stable/c/af8fb5a0600e9ae29950e9422a032c3c22649ee5
- https://git.kernel.org/stable/c/d360e875c011a005628525bf290322058927e7dc
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/core: Fix null-ptr-deref in ib_core_cleanup()\n\nKASAN reported a null-ptr-deref error:\n\n KASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f]\n CPU: 1 PID: 379\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996)\n RIP: 0010:destroy_workqueue+0x2f/0x740\n RSP: 0018:ffff888016137df8 EFLAGS: 00000202\n ...\n Call Trace:\n ib_core_cleanup+0xa/0xa1 [ib_core]\n __do_sys_delete_module.constprop.0+0x34f/0x5b0\n do_syscall_64+0x3a/0x90\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n RIP: 0033:0x7fa1a0d221b7\n ...\n\nIt is because the fail of roce_gid_mgmt_init() is ignored:\n\n ib_core_init()\n roce_gid_mgmt_init()\n gid_cache_wq = alloc_ordered_workqueue # fail\n ...\n ib_core_cleanup()\n roce_gid_mgmt_cleanup()\n destroy_workqueue(gid_cache_wq)\n # destroy an unallocated wq\n\nFix this by catching the fail of roce_gid_mgmt_init() in ib_core_init()."
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: RDMA/core: Fix null-ptr-deref en ib_core_cleanup() KASAN informó un error null-ptr-deref: KASAN: null-ptr-deref en el rango [0x0000000000000118-0x000000000000011f] CPU: 1 PID: 379 Nombre del hardware: QEMU Standard PC (i440FX + PIIX, 1996) RIP: 0010:destroy_workqueue+0x2f/0x740 RSP: 0018:ffff888016137df8 EFLAGS: 00000202 ... Seguimiento de llamadas: ib_core_cleanup+0xa/0xa1 [ib_core] __do_sys_delete_module.constprop.0+0x34f/0x5b0 do_syscall_64+0x3a/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fa1a0d221b7 ... It is because the fail of roce_gid_mgmt_init() is ignored: ib_core_init() roce_gid_mgmt_init() gid_cache_wq = alloc_ordered_workqueue # fail ... ib_core_cleanup() roce_gid_mgmt_cleanup() destroy_workqueue(gid_cache_wq) # destroy an unallocated wq Fix this by catching the fail of roce_gid_mgmt_init() in ib_core_init(). "
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"lastModified": "2026-06-17T05:19:32.187",
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