CVE-2022-50288
published 2025-09-15CVE-2022-50288: In the Linux kernel, the following vulnerability has been resolved: qlcnic: prevent ->dcb use-after-free on qlcnic_dcb_enable() failure adapter->dcb would get…
PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.15%
4.5th percentile
In the Linux kernel, the following vulnerability has been resolved:
qlcnic: prevent ->dcb use-after-free on qlcnic_dcb_enable() failure
adapter->dcb would get silently freed inside qlcnic_dcb_enable() in
case qlcnic_dcb_attach() would return an error, which always happens
under OOM conditions. This would lead to use-after-free because both
of the existing callers invoke qlcnic_dcb_get_info() on the obtained
pointer, which is potentially freed at that point.
Propagate errors from qlcnic_dcb_enable(), and instead free the dcb
pointer at callsite using qlcnic_dcb_free(). This also removes the now
unused qlcnic_clear_dcb_ops() helper, which was a simple wrapper around
kfree() also causing memory leaks for partially initialized dcb.
Found by Linux Verification Center (linuxtesting.org) with the SVACE
static analysis tool.
Affected
22 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.7-1 (bookworm) | linux 6.1.7-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 3c44bba1d270cb1620b4fe76786d0968118cb86b < 36999236f0b12d5de21a6f40e93b570727b9ceb2 | 36999236f0b12d5de21a6f40e93b570727b9ceb2 |
| linux | linux | >= 3c44bba1d270cb1620b4fe76786d0968118cb86b < d12a7510293d3370b234b0b7c5eda33e58786768 | d12a7510293d3370b234b0b7c5eda33e58786768 |
| linux | linux | >= 3c44bba1d270cb1620b4fe76786d0968118cb86b < 8f97eeb02a553cdc78c83a0596448a370e1518c4 | 8f97eeb02a553cdc78c83a0596448a370e1518c4 |
| linux | linux | >= 3c44bba1d270cb1620b4fe76786d0968118cb86b < 513787ff9a331b461115e8a145a983d650a84fcb | 513787ff9a331b461115e8a145a983d650a84fcb |
| linux | linux | >= 3c44bba1d270cb1620b4fe76786d0968118cb86b < 95df720e64a6409d8152827a776c43f615e3321a | 95df720e64a6409d8152827a776c43f615e3321a |
| linux | linux | >= 3c44bba1d270cb1620b4fe76786d0968118cb86b < 8df1dc04ce0e4c03b51a756749c250a9cb17d707 | 8df1dc04ce0e4c03b51a756749c250a9cb17d707 |
| linux | linux | >= 3c44bba1d270cb1620b4fe76786d0968118cb86b < a2a694e6edbdb3efb34e1613a31fdcf6cf444a55 | a2a694e6edbdb3efb34e1613a31fdcf6cf444a55 |
| linux | linux | >= 3c44bba1d270cb1620b4fe76786d0968118cb86b < 13a7c8964afcd8ca43c0b6001ebb0127baa95362 | 13a7c8964afcd8ca43c0b6001ebb0127baa95362 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.178-1 | 5.10.178-1 |
| linux | linux_kernel | >= 0 < 6.1.7-1 | 6.1.7-1 |
| linux | linux_kernel | >= 0 < 6.1.7-1 | 6.1.7-1 |
| linux | linux_kernel | >= 0 < 6.1.7-1 | 6.1.7-1 |
| linux | linux_kernel | >= 3.14 < 4.14.303 | 4.14.303 |
| linux | linux_kernel | >= 4.15 < 4.19.270 | 4.19.270 |
| linux | linux_kernel | >= 4.20 < 5.4.229 | 5.4.229 |
| linux | linux_kernel | >= 5.11 < 5.15.87 | 5.15.87 |
| linux | linux_kernel | >= 5.16 < 6.0.19 | 6.0.19 |
| linux | linux_kernel | >= 5.5 < 5.10.163 | 5.10.163 |
| linux | linux_kernel | >= 6.1 < 6.1.5 | 6.1.5 |
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
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Red Hat
kernel: qlcnic: prevent ->dcb use-after-free on qlcnic_dcb_enable() failure
vendor_redhat·2025-09-15·CVSS 5.5
CVE-2022-50288 [MEDIUM] CWE-416 kernel: qlcnic: prevent ->dcb use-after-free on qlcnic_dcb_enable() failure
kernel: qlcnic: prevent ->dcb use-after-free on qlcnic_dcb_enable() failure
In the Linux kernel, the following vulnerability has been resolved:
qlcnic: prevent ->dcb use-after-free on qlcnic_dcb_enable() failure
adapter->dcb would get silently freed inside qlcnic_dcb_enable() in
case qlcnic_dcb_attach() would return an error, which always happens
under OOM conditions. This would lead to use-after-free because both
of the existing callers invoke qlcnic_dcb_get_info() on the obtained
pointer, which is potentially freed at that point.
Propagate errors from qlcnic_dcb_enable(), and instead free the dcb
pointer at callsite using qlcnic_dcb_free(). This also removes the now
unused qlcnic_clear_dcb_ops() helper, which was a simple wrapper around
kfree() also causing memory leaks for partially in
Debian
CVE-2022-50288: linux - In the Linux kernel, the following vulnerability has been resolved: qlcnic: pre...
vendor_debian·2022·CVSS 5.5
CVE-2022-50288 [MEDIUM] CVE-2022-50288: linux - In the Linux kernel, the following vulnerability has been resolved: qlcnic: pre...
In the Linux kernel, the following vulnerability has been resolved: qlcnic: prevent ->dcb use-after-free on qlcnic_dcb_enable() failure adapter->dcb would get silently freed inside qlcnic_dcb_enable() in case qlcnic_dcb_attach() would return an error, which always happens under OOM conditions. This would lead to use-after-free because both of the existing callers invoke qlcnic_dcb_get_info() on the obtained pointer, which is potentially freed at that point. Propagate errors from qlcnic_dcb_enable(), and instead free the dcb pointer at callsite using qlcnic_dcb_free(). This also removes the now unused qlcnic_clear_dcb_ops() helper, which was a simple wrapper around kfree() also causing memory leaks for partially initialized dcb. Found by Linux Verification Center (linuxtesting.org) with the
GHSA
GHSA-rqx9-pg4r-6qm3: In the Linux kernel, the following vulnerability has been resolved:
qlcnic: prevent ->dcb use-after-free on qlcnic_dcb_enable() failure
adapter->dcb
ghsa_unreviewed·2025-09-15
CVE-2022-50288 [MEDIUM] CWE-416 GHSA-rqx9-pg4r-6qm3: In the Linux kernel, the following vulnerability has been resolved:
qlcnic: prevent ->dcb use-after-free on qlcnic_dcb_enable() failure
adapter->dcb
In the Linux kernel, the following vulnerability has been resolved:
qlcnic: prevent ->dcb use-after-free on qlcnic_dcb_enable() failure
adapter->dcb would get silently freed inside qlcnic_dcb_enable() in
case qlcnic_dcb_attach() would return an error, which always happens
under OOM conditions. This would lead to use-after-free because both
of the existing callers invoke qlcnic_dcb_get_info() on the obtained
pointer, which is potentially freed at that point.
Propagate errors from qlcnic_dcb_enable(), and instead free the dcb
pointer at callsite using qlcnic_dcb_free(). This also removes the now
unused qlcnic_clear_dcb_ops() helper, which was a simple wrapper around
kfree() also causing memory leaks for partially initialized dcb.
Found by Linux Verification Center (linuxtesting.org) with
OSV
CVE-2022-50288: In the Linux kernel, the following vulnerability has been resolved: qlcnic: prevent ->dcb use-after-free on qlcnic_dcb_enable() failure adapter->dcb w
osv·2025-09-15·CVSS 5.5
CVE-2022-50288 [MEDIUM] CVE-2022-50288: In the Linux kernel, the following vulnerability has been resolved: qlcnic: prevent ->dcb use-after-free on qlcnic_dcb_enable() failure adapter->dcb w
In the Linux kernel, the following vulnerability has been resolved: qlcnic: prevent ->dcb use-after-free on qlcnic_dcb_enable() failure adapter->dcb would get silently freed inside qlcnic_dcb_enable() in case qlcnic_dcb_attach() would return an error, which always happens under OOM conditions. This would lead to use-after-free because both of the existing callers invoke qlcnic_dcb_get_info() on the obtained pointer, which is potentially freed at that point. Propagate errors from qlcnic_dcb_enable(), and instead free the dcb pointer at callsite using qlcnic_dcb_free(). This also removes the now unused qlcnic_clear_dcb_ops() helper, which was a simple wrapper around kfree() also causing memory leaks for partially initialized dcb. Found by Linux Verification Center (linuxtesting.org) with the
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/13a7c8964afcd8ca43c0b6001ebb0127baa95362https://git.kernel.org/stable/c/36999236f0b12d5de21a6f40e93b570727b9ceb2https://git.kernel.org/stable/c/513787ff9a331b461115e8a145a983d650a84fcbhttps://git.kernel.org/stable/c/8df1dc04ce0e4c03b51a756749c250a9cb17d707https://git.kernel.org/stable/c/8f97eeb02a553cdc78c83a0596448a370e1518c4https://git.kernel.org/stable/c/95df720e64a6409d8152827a776c43f615e3321ahttps://git.kernel.org/stable/c/a2a694e6edbdb3efb34e1613a31fdcf6cf444a55https://git.kernel.org/stable/c/d12a7510293d3370b234b0b7c5eda33e58786768
2025-09-15
Published