fkie_cve-2021-47340
Vulnerability from fkie_nvd
Published
2024-05-21 15:15
Modified
2025-05-12 19:58
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
jfs: fix GPF in diFree
Avoid passing inode with
JFS_SBI(inode->i_sb)->ipimap == NULL to
diFree()[1]. GFP will appear:
struct inode *ipimap = JFS_SBI(ip->i_sb)->ipimap;
struct inomap *imap = JFS_IP(ipimap)->i_imap;
JFS_IP() will return invalid pointer when ipimap == NULL
Call Trace:
diFree+0x13d/0x2dc0 fs/jfs/jfs_imap.c:853 [1]
jfs_evict_inode+0x2c9/0x370 fs/jfs/inode.c:154
evict+0x2ed/0x750 fs/inode.c:578
iput_final fs/inode.c:1654 [inline]
iput.part.0+0x3fe/0x820 fs/inode.c:1680
iput+0x58/0x70 fs/inode.c:1670
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * |
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\njfs: fix GPF in diFree\n\nAvoid passing inode with\nJFS_SBI(inode-\u003ei_sb)-\u003eipimap == NULL to\ndiFree()[1]. GFP will appear:\n\n\tstruct inode *ipimap = JFS_SBI(ip-\u003ei_sb)-\u003eipimap;\n\tstruct inomap *imap = JFS_IP(ipimap)-\u003ei_imap;\n\nJFS_IP() will return invalid pointer when ipimap == NULL\n\nCall Trace:\n diFree+0x13d/0x2dc0 fs/jfs/jfs_imap.c:853 [1]\n jfs_evict_inode+0x2c9/0x370 fs/jfs/inode.c:154\n evict+0x2ed/0x750 fs/inode.c:578\n iput_final fs/inode.c:1654 [inline]\n iput.part.0+0x3fe/0x820 fs/inode.c:1680\n iput+0x58/0x70 fs/inode.c:1670"
},
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"lang": "es",
"value": "En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: jfs: corrige GPF en diFree. Evite pasar el inodo con JFS_SBI(inode-\u0026gt;i_sb)-\u0026gt;ipimap == NULL a diFree()[1]. Aparecer\u00e1 GFP: struct inode *ipimap = JFS_SBI(ip-\u0026gt;i_sb)-\u0026gt;ipimap; estructura inomap *imap = JFS_IP(ipimap)-\u0026gt;i_imap; JFS_IP() devolver\u00e1 un puntero no v\u00e1lido cuando ipimap == NULL Seguimiento de llamadas: diFree+0x13d/0x2dc0 fs/jfs/jfs_imap.c:853 [1] jfs_evict_inode+0x2c9/0x370 fs/jfs/inode.c:154 evict+0x2ed/ 0x750 fs/inode.c:578 iput_final fs/inode.c:1654 [en l\u00ednea] iput.part.0+0x3fe/0x820 fs/inode.c:1680 iput+0x58/0x70 fs/inode.c:1670"
}
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"id": "CVE-2021-47340",
"lastModified": "2025-05-12T19:58:32.007",
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"baseScore": 5.5,
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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