CVE-2022-49381 (GCVE-0-2022-49381)
Vulnerability from cvelistv5
Published
2025-02-26 02:11
Modified
2025-05-04 08:36
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
jffs2: fix memory leak in jffs2_do_fill_super
If jffs2_iget() or d_make_root() in jffs2_do_fill_super() returns
an error, we can observe the following kmemleak report:
--------------------------------------------
unreferenced object 0xffff888105a65340 (size 64):
comm "mount", pid 710, jiffies 4302851558 (age 58.239s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffff859c45e5>] kmem_cache_alloc_trace+0x475/0x8a0
[<ffffffff86160146>] jffs2_sum_init+0x96/0x1a0
[<ffffffff86140e25>] jffs2_do_mount_fs+0x745/0x2120
[<ffffffff86149fec>] jffs2_do_fill_super+0x35c/0x810
[<ffffffff8614aae9>] jffs2_fill_super+0x2b9/0x3b0
[...]
unreferenced object 0xffff8881bd7f0000 (size 65536):
comm "mount", pid 710, jiffies 4302851558 (age 58.239s)
hex dump (first 32 bytes):
bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................
bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................
backtrace:
[<ffffffff858579ba>] kmalloc_order+0xda/0x110
[<ffffffff85857a11>] kmalloc_order_trace+0x21/0x130
[<ffffffff859c2ed1>] __kmalloc+0x711/0x8a0
[<ffffffff86160189>] jffs2_sum_init+0xd9/0x1a0
[<ffffffff86140e25>] jffs2_do_mount_fs+0x745/0x2120
[<ffffffff86149fec>] jffs2_do_fill_super+0x35c/0x810
[<ffffffff8614aae9>] jffs2_fill_super+0x2b9/0x3b0
[...]
--------------------------------------------
This is because the resources allocated in jffs2_sum_init() are not
released. Call jffs2_sum_exit() to release these resources to solve
the problem.
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| ▼ | Linux | Linux |
Version: e631ddba588783edd521c5a89f7b2902772fb691 Version: e631ddba588783edd521c5a89f7b2902772fb691 Version: e631ddba588783edd521c5a89f7b2902772fb691 Version: e631ddba588783edd521c5a89f7b2902772fb691 Version: e631ddba588783edd521c5a89f7b2902772fb691 Version: e631ddba588783edd521c5a89f7b2902772fb691 Version: e631ddba588783edd521c5a89f7b2902772fb691 Version: e631ddba588783edd521c5a89f7b2902772fb691 Version: e631ddba588783edd521c5a89f7b2902772fb691 |
||||||
|
|||||||||
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{
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\njffs2: fix memory leak in jffs2_do_fill_super\n\nIf jffs2_iget() or d_make_root() in jffs2_do_fill_super() returns\nan error, we can observe the following kmemleak report:\n\n--------------------------------------------\nunreferenced object 0xffff888105a65340 (size 64):\n comm \"mount\", pid 710, jiffies 4302851558 (age 58.239s)\n hex dump (first 32 bytes):\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace:\n [\u003cffffffff859c45e5\u003e] kmem_cache_alloc_trace+0x475/0x8a0\n [\u003cffffffff86160146\u003e] jffs2_sum_init+0x96/0x1a0\n [\u003cffffffff86140e25\u003e] jffs2_do_mount_fs+0x745/0x2120\n [\u003cffffffff86149fec\u003e] jffs2_do_fill_super+0x35c/0x810\n [\u003cffffffff8614aae9\u003e] jffs2_fill_super+0x2b9/0x3b0\n [...]\nunreferenced object 0xffff8881bd7f0000 (size 65536):\n comm \"mount\", pid 710, jiffies 4302851558 (age 58.239s)\n hex dump (first 32 bytes):\n bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................\n bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................\n backtrace:\n [\u003cffffffff858579ba\u003e] kmalloc_order+0xda/0x110\n [\u003cffffffff85857a11\u003e] kmalloc_order_trace+0x21/0x130\n [\u003cffffffff859c2ed1\u003e] __kmalloc+0x711/0x8a0\n [\u003cffffffff86160189\u003e] jffs2_sum_init+0xd9/0x1a0\n [\u003cffffffff86140e25\u003e] jffs2_do_mount_fs+0x745/0x2120\n [\u003cffffffff86149fec\u003e] jffs2_do_fill_super+0x35c/0x810\n [\u003cffffffff8614aae9\u003e] jffs2_fill_super+0x2b9/0x3b0\n [...]\n--------------------------------------------\n\nThis is because the resources allocated in jffs2_sum_init() are not\nreleased. Call jffs2_sum_exit() to release these resources to solve\nthe problem."
}
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},
{
"url": "https://git.kernel.org/stable/c/c14adb1cf70a984ed081c67e9d27bc3caad9537c"
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"cveId": "CVE-2022-49381",
"datePublished": "2025-02-26T02:11:18.812Z",
"dateReserved": "2025-02-26T02:08:31.559Z",
"dateUpdated": "2025-05-04T08:36:28.528Z",
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"nvd": "{\"cve\":{\"id\":\"CVE-2022-49381\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-26T07:01:14.727\",\"lastModified\":\"2025-04-14T20:38:11.710\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\njffs2: fix memory leak in jffs2_do_fill_super\\n\\nIf jffs2_iget() or d_make_root() in jffs2_do_fill_super() returns\\nan error, we can observe the following kmemleak report:\\n\\n--------------------------------------------\\nunreferenced object 0xffff888105a65340 (size 64):\\n comm \\\"mount\\\", pid 710, jiffies 4302851558 (age 58.239s)\\n hex dump (first 32 bytes):\\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\\n backtrace:\\n [\u003cffffffff859c45e5\u003e] kmem_cache_alloc_trace+0x475/0x8a0\\n [\u003cffffffff86160146\u003e] jffs2_sum_init+0x96/0x1a0\\n [\u003cffffffff86140e25\u003e] jffs2_do_mount_fs+0x745/0x2120\\n [\u003cffffffff86149fec\u003e] jffs2_do_fill_super+0x35c/0x810\\n [\u003cffffffff8614aae9\u003e] jffs2_fill_super+0x2b9/0x3b0\\n [...]\\nunreferenced object 0xffff8881bd7f0000 (size 65536):\\n comm \\\"mount\\\", pid 710, jiffies 4302851558 (age 58.239s)\\n hex dump (first 32 bytes):\\n bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................\\n bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................\\n backtrace:\\n [\u003cffffffff858579ba\u003e] kmalloc_order+0xda/0x110\\n [\u003cffffffff85857a11\u003e] kmalloc_order_trace+0x21/0x130\\n [\u003cffffffff859c2ed1\u003e] __kmalloc+0x711/0x8a0\\n [\u003cffffffff86160189\u003e] jffs2_sum_init+0xd9/0x1a0\\n [\u003cffffffff86140e25\u003e] jffs2_do_mount_fs+0x745/0x2120\\n [\u003cffffffff86149fec\u003e] jffs2_do_fill_super+0x35c/0x810\\n [\u003cffffffff8614aae9\u003e] jffs2_fill_super+0x2b9/0x3b0\\n [...]\\n--------------------------------------------\\n\\nThis is because the resources allocated in jffs2_sum_init() are not\\nreleased. Call jffs2_sum_exit() to release these resources to solve\\nthe problem.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: jffs2: se corrige la p\u00e9rdida de memoria en jffs2_do_fill_super Si jffs2_iget() o d_make_root() en jffs2_do_fill_super() devuelve un error, podemos observar el siguiente informe de kmemleak: -------------------------------------------- objeto sin referencia 0xffff888105a65340 (size 64): comm \\\"mount\\\", pid 710, jiffies 4302851558 (age 58.239s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [] kmem_cache_alloc_trace+0x475/0x8a0 [] jffs2_sum_init+0x96/0x1a0 [] jffs2_do_mount_fs+0x745/0x2120 [] jffs2_do_fill_super+0x35c/0x810 [] jffs2_fill_super+0x2b9/0x3b0 [...] unreferenced object 0xffff8881bd7f0000 (size 65536): comm \\\"mount\\\", pid 710, jiffies 4302851558 (age 58.239s) hex dump (first 32 bytes): bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ backtrace: [] kmalloc_order+0xda/0x110 [] kmalloc_order_trace+0x21/0x130 [] __kmalloc+0x711/0x8a0 [] jffs2_sum_init+0xd9/0x1a0 [] jffs2_do_mount_fs+0x745/0x2120 [] jffs2_do_fill_super+0x35c/0x810 [] jffs2_fill_super+0x2b9/0x3b0 [...] -------------------------------------------- Esto se debe a que los recursos asignados en jffs2_sum_init() no se liberan. 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