CVE-2022-47941
published 2022-12-23CVE-2022-47941: An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. fs/ksmbd/smb2pdu.c omits a kfree call in certain smb2_handle_negotiate…
PriorityP338high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
4.91%
91.2th percentile
An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. fs/ksmbd/smb2pdu.c omits a kfree call in certain smb2_handle_negotiate error conditions, aka a memory leak.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.19.6-1 (bookworm) | linux 5.19.6-1 (bookworm) |
| linux | linux_kernel | >= 0 < 5.19.6-1 | 5.19.6-1 |
| linux | linux_kernel | >= 0 < 5.19.6-1 | 5.19.6-1 |
| linux | linux_kernel | >= 0 < 5.19.6-1 | 5.19.6-1 |
| linux | linux_kernel | >= 5.15 < 5.15.61 | 5.15.61 |
| linux | linux_kernel | >= 5.16 < 5.18.18 | 5.18.18 |
| linux | linux_kernel | >= 5.19 < 5.19.2 | 5.19.2 |
| msrc | cbl2_kernel_5.15.86.1-1_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
osv7.5HIGH
vendor_debian7.5HIGH
vendor_msrc7.5HIGH
vendor_redhat7.5HIGH
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Red Hat
kernel: handling of SMB2_NEGOTIATE command doesn't properly release memory which could result in DoS
vendor_redhat·2022-12-22·CVSS 7.5
CVE-2022-47941 [HIGH] CWE-400 kernel: handling of SMB2_NEGOTIATE command doesn't properly release memory which could result in DoS
kernel: handling of SMB2_NEGOTIATE command doesn't properly release memory which could result in DoS
An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. fs/ksmbd/smb2pdu.c omits a kfree call in certain smb2_handle_negotiate error conditions, aka a memory leak.
Statement: There was no shipped kernel version that was seen affected by this problem. These files are not built in our source code. See https://access.redhat.com/solutions/6991749 for more information.
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 7) - Not affected
Package: kernel (Red Hat Enterprise Linux 8) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 8) - No
Microsoft
An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. fs/ksmbd/smb2pdu.c omits a kfree call in certain smb2_handle_negotiate error conditions aka a memory leak.
vendor_msrc·2022-12-13·CVSS 7.5
CVE-2022-47941 [HIGH] CWE-401 An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. fs/ksmbd/smb2pdu.c omits a kfree call in certain smb2_handle_negotiate error conditions aka a memory leak.
An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. fs/ksmbd/smb2pdu.c omits a kfree call in certain smb2_handle_negotiate error conditions aka a memory leak.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to
Debian
CVE-2022-47941: linux - An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5....
vendor_debian·2022·CVSS 7.5
CVE-2022-47941 [HIGH] CVE-2022-47941: linux - An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5....
An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. fs/ksmbd/smb2pdu.c omits a kfree call in certain smb2_handle_negotiate error conditions, aka a memory leak.
Scope: local
bookworm: resolved (fixed in 5.19.6-1)
bullseye: resolved
forky: resolved (fixed in 5.19.6-1)
sid: resolved (fixed in 5.19.6-1)
trixie: resolved (fixed in 5.19.6-1)
GHSA
GHSA-2wc2-77r7-4pm8: An issue was discovered in ksmbd in the Linux kernel before 5
ghsa_unreviewed·2022-12-23
CVE-2022-47941 [HIGH] CWE-401 GHSA-2wc2-77r7-4pm8: An issue was discovered in ksmbd in the Linux kernel before 5
An issue was discovered in ksmbd in the Linux kernel before 5.19.2. fs/ksmbd/smb2pdu.c omits a kfree call in certain smb2_handle_negotiate error conditions, aka a memory leak.
OSV
CVE-2022-47941: An issue was discovered in ksmbd in the Linux kernel 5
osv·2022-12-23·CVSS 7.5
CVE-2022-47941 [HIGH] CVE-2022-47941: An issue was discovered in ksmbd in the Linux kernel 5
An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. fs/ksmbd/smb2pdu.c omits a kfree call in certain smb2_handle_negotiate error conditions, aka a memory leak.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
http://www.openwall.com/lists/oss-security/2022/12/23/10https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=aa7253c2393f6dcd6a1468b0792f6da76edad917https://github.com/torvalds/linux/commit/aa7253c2393f6dcd6a1468b0792f6da76edad917https://www.zerodayinitiative.com/advisories/ZDI-22-1687/http://www.openwall.com/lists/oss-security/2022/12/23/10https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=aa7253c2393f6dcd6a1468b0792f6da76edad917https://github.com/torvalds/linux/commit/aa7253c2393f6dcd6a1468b0792f6da76edad917https://www.zerodayinitiative.com/advisories/ZDI-22-1687/
2022-12-23
Published