5.5

CVE-2021-47340

jfs: fix GPF in diFree

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
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 4.4.276
Linux ≫ Linux Kernel Version >= 4.5 < 4.9.276
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.240
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.198
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.133
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.51
Linux ≫ Linux Kernel Version >= 5.11 < 5.12.18
Linux ≫ Linux Kernel Version >= 5.13 < 5.13.3
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.26% 0.169
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://git.kernel.org/stable/c/3bb27e27240289b47d3466f647a55c567adbdc3a
Patch
https://git.kernel.org/stable/c/42f102ea1943ecb10a0756bf75424de5d1d5beed
Patch
https://git.kernel.org/stable/c/49def1b0644892e3b113673c13d650c3060b43bc
Patch
https://git.kernel.org/stable/c/745c9a59422c63f661f4374ed5181740db4130a1
Patch
https://git.kernel.org/stable/c/7bde24bde490f3139eee147efc6d60d6040fe975
Patch
https://git.kernel.org/stable/c/8018936950360f1c503bb385e158cfc5e4945d18
Patch
https://git.kernel.org/stable/c/9d574f985fe33efd6911f4d752de6f485a1ea732
Patch
https://git.kernel.org/stable/c/a21e5cb1a64c904f1f0ef7b2d386fc7d2b1d2ce2
Patch
https://git.kernel.org/stable/c/aff8d95b69051d0cf4acc3d91f22299fdbb9dfb3
Patch