CVE-2022-49938
published 2025-06-18CVE-2022-49938: In the Linux kernel, the following vulnerability has been resolved: cifs: fix small mempool leak in SMB2_negotiate() In some cases of failure (dialect…
PriorityP418medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.15%
4.6th percentile
In the Linux kernel, the following vulnerability has been resolved:
cifs: fix small mempool leak in SMB2_negotiate()
In some cases of failure (dialect mismatches) in SMB2_negotiate(), after
the request is sent, the checks would return -EIO when they should be
rather setting rc = -EIO and jumping to neg_exit to free the response
buffer from mempool.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.19.11-1 (bookworm) | linux 5.19.11-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | >= 4.13.5 < 4.14 | 4.14 |
| linux | linux | >= 9764c02fcbad40001fd3f63558d918e4d519bb75 < 9e3c9efa7caf16e5acc05eab5e4d0a714e1610b0 | 9e3c9efa7caf16e5acc05eab5e4d0a714e1610b0 |
| linux | linux | >= 9764c02fcbad40001fd3f63558d918e4d519bb75 < 38a6b469bf22f153282fbe7d702a24e9eb43f50e | 38a6b469bf22f153282fbe7d702a24e9eb43f50e |
| linux | linux | >= 9764c02fcbad40001fd3f63558d918e4d519bb75 < 27893dfc1285f80f80f46b3b8c95f5d15d2e66d0 | 27893dfc1285f80f80f46b3b8c95f5d15d2e66d0 |
| linux | linux_kernel | < 5.15.66 | 5.15.66 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.19.11-1 | 5.19.11-1 |
| linux | linux_kernel | >= 0 < 5.19.11-1 | 5.19.11-1 |
| linux | linux_kernel | >= 0 < 5.19.11-1 | 5.19.11-1 |
| linux | linux_kernel | >= 5.16 < 5.19.8 | 5.19.8 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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OSV
CVE-2022-49938: In the Linux kernel, the following vulnerability has been resolved: cifs: fix small mempool leak in SMB2_negotiate() In some cases of failure (dialect
osv·2025-06-18·CVSS 5.5
CVE-2022-49938 [MEDIUM] CVE-2022-49938: In the Linux kernel, the following vulnerability has been resolved: cifs: fix small mempool leak in SMB2_negotiate() In some cases of failure (dialect
In the Linux kernel, the following vulnerability has been resolved: cifs: fix small mempool leak in SMB2_negotiate() In some cases of failure (dialect mismatches) in SMB2_negotiate(), after the request is sent, the checks would return -EIO when they should be rather setting rc = -EIO and jumping to neg_exit to free the response buffer from mempool.
GHSA
GHSA-xr9r-hxj6-96p6: In the Linux kernel, the following vulnerability has been resolved:
cifs: fix small mempool leak in SMB2_negotiate()
In some cases of failure (diale
ghsa_unreviewed·2025-06-18
CVE-2022-49938 [MEDIUM] CWE-401 GHSA-xr9r-hxj6-96p6: In the Linux kernel, the following vulnerability has been resolved:
cifs: fix small mempool leak in SMB2_negotiate()
In some cases of failure (diale
In the Linux kernel, the following vulnerability has been resolved:
cifs: fix small mempool leak in SMB2_negotiate()
In some cases of failure (dialect mismatches) in SMB2_negotiate(), after
the request is sent, the checks would return -EIO when they should be
rather setting rc = -EIO and jumping to neg_exit to free the response
buffer from mempool.
Red Hat
kernel: cifs: fix small mempool leak in SMB2_negotiate()
vendor_redhat·2025-06-18·CVSS 5.5
CVE-2022-49938 [MEDIUM] kernel: cifs: fix small mempool leak in SMB2_negotiate()
kernel: cifs: fix small mempool leak in SMB2_negotiate()
In the Linux kernel, the following vulnerability has been resolved:
cifs: fix small mempool leak in SMB2_negotiate()
In some cases of failure (dialect mismatches) in SMB2_negotiate(), after
the request is sent, the checks would return -EIO when they should be
rather setting rc = -EIO and jumping to neg_exit to free the response
buffer from mempool.
Package: kernel (Red Hat Enterprise Linux 10) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Fix deferred
Package: kernel-rt (Red Hat Enterprise Linux 7) - Fix deferred
Package: kernel (Red Hat Enterprise Linux 8) - Fix deferred
Package: kernel-rt (Red Hat Enterprise Linux 8) - Fix deferred
Package: kernel-r
Debian
CVE-2022-49938: linux - In the Linux kernel, the following vulnerability has been resolved: cifs: fix s...
vendor_debian·2022·CVSS 5.5
CVE-2022-49938 [MEDIUM] CVE-2022-49938: linux - In the Linux kernel, the following vulnerability has been resolved: cifs: fix s...
In the Linux kernel, the following vulnerability has been resolved: cifs: fix small mempool leak in SMB2_negotiate() In some cases of failure (dialect mismatches) in SMB2_negotiate(), after the request is sent, the checks would return -EIO when they should be rather setting rc = -EIO and jumping to neg_exit to free the response buffer from mempool.
Scope: local
bookworm: resolved (fixed in 5.19.11-1)
bullseye: open
forky: resolved (fixed in 5.19.11-1)
sid: resolved (fixed in 5.19.11-1)
trixie: resolved (fixed in 5.19.11-1)
No detection rules found.
No public exploits indexed.
2025-06-18
Published