CVE-2022-50248
published 2025-09-15CVE-2022-50248: In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix double free on tx path. We see kernel crashes and lockups and KASAN…
PriorityP340high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.15%
4.7th percentile
In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: mvm: fix double free on tx path.
We see kernel crashes and lockups and KASAN errors related to ax210
firmware crashes. One of the KASAN dumps pointed at the tx path,
and it appears there is indeed a way to double-free an skb.
If iwl_mvm_tx_skb_sta returns non-zero, then the 'skb' sent into the
method will be freed. But, in case where we build TSO skb buffer,
the skb may also be freed in error case. So, return 0 in that particular
error case and do cleanup manually.
BUG: KASAN: use-after-free in __list_del_entry_valid+0x12/0x90
iwlwifi 0000:06:00.0: 0x00000000 | tsf hi
Read of size 8 at addr ffff88813cfa4ba0 by task btserver/9650
CPU: 4 PID: 9650 Comm: btserver Tainted: G W 5.19.8+ #5
iwlwifi 0000:06:00.0: 0x00000000 | time gp1
Hardware name: Default string Default string/SKYBAY, BIOS 5.12 02/19/2019
Call Trace:
dump_stack_lvl+0x55/0x6d
print_report.cold.12+0xf2/0x684
iwlwifi 0000:06:00.0: 0x1D0915A8 | time gp2
? __list_del_entry_valid+0x12/0x90
kasan_report+0x8b/0x180
iwlwifi 0000:06:00.0: 0x00000001 | uCode revision type
? __list_del_entry_valid+0x12/0x90
__list_del_entry_valid+0x12/0x90
iwlwifi 0000:06:00.0: 0x00000048 | uCode version major
tcp_update_skb_after_send+0x5d/0x170
__tcp_transmit_skb+0xb61/0x15c0
iwlwifi 0000:06:00.0: 0xDAA05125 | uCode version minor
? __tcp_select_window+0x490/0x490
iwlwifi 0000:06:00.0: 0x00000420 | hw version
? trace_kmalloc_node+0x29/0xd0
? __kmalloc_node_track_caller+0x12a/0x260
? memset+0x1f/0x40
? __build_skb_around+0x125/0x150
? __alloc_skb+0x1d4/0x220
? skb_zerocopy_clone+0x55/0x230
iwlwifi 0000:06:00.0: 0x00489002 | board version
? kmalloc_reserve+0x80/0x80
? rcu_read_lock_bh_held+0x60/0xb0
tcp_write_xmit+0x3f1/0x24d0
iwlwifi 0000:06:00.0: 0x034E001C | hcmd
? __check_object_size+0x180/0x350
iwlwifi 0000:06:00.0: 0x24020000 | isr0
tcp_sendmsg_locked+0x8a9/0x1520
iwlwifi 0000:06:00.0: 0x01400000 | isr1
? tcp_sendpage+0x50/0x50
iwlwifi 0000:
Affected
17 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.4-1 (bookworm) | linux 6.1.4-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 08f7d8b69aaf137db8ee0a2d7c9e6cd6383ae250 < 0e1e311fd929c6a8dcfddcb4748c47b07e39821f | 0e1e311fd929c6a8dcfddcb4748c47b07e39821f |
| linux | linux | >= 08f7d8b69aaf137db8ee0a2d7c9e6cd6383ae250 < ae966649f665bc3868b935157dd4a3c31810dcc0 | ae966649f665bc3868b935157dd4a3c31810dcc0 |
| linux | linux | >= 08f7d8b69aaf137db8ee0a2d7c9e6cd6383ae250 < d8e32f1bf1a9183a6aad560c6688500222d24299 | d8e32f1bf1a9183a6aad560c6688500222d24299 |
| linux | linux | >= 08f7d8b69aaf137db8ee0a2d7c9e6cd6383ae250 < 8fabe41fba907e4fd826acbbdb42e09c681c515e | 8fabe41fba907e4fd826acbbdb42e09c681c515e |
| linux | linux | >= 08f7d8b69aaf137db8ee0a2d7c9e6cd6383ae250 < 3a2ecd1ec14075117ccb3e85f0fed224578ec228 | 3a2ecd1ec14075117ccb3e85f0fed224578ec228 |
| linux | linux | >= 08f7d8b69aaf137db8ee0a2d7c9e6cd6383ae250 < 0473cbae2137b963bd0eaa74336131cb1d3bc6c3 | 0473cbae2137b963bd0eaa74336131cb1d3bc6c3 |
| linux | linux_kernel | >= 0 < 5.10.178-1 | 5.10.178-1 |
| linux | linux_kernel | >= 0 < 6.1.4-1 | 6.1.4-1 |
| linux | linux_kernel | >= 0 < 6.1.4-1 | 6.1.4-1 |
| linux | linux_kernel | >= 0 < 6.1.4-1 | 6.1.4-1 |
| linux | linux_kernel | >= 5.1 < 5.4.229 | 5.4.229 |
| linux | linux_kernel | >= 5.11 < 5.15.86 | 5.15.86 |
| linux | linux_kernel | >= 5.16 < 6.0.16 | 6.0.16 |
| linux | linux_kernel | >= 5.5 < 5.10.163 | 5.10.163 |
| linux | linux_kernel | >= 6.1 < 6.1.2 | 6.1.2 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
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Red Hat
kernel: wifi: iwlwifi: mvm: fix double free on tx path
vendor_redhat·2025-09-15·CVSS 7.8
CVE-2022-50248 [HIGH] CWE-415 kernel: wifi: iwlwifi: mvm: fix double free on tx path
kernel: wifi: iwlwifi: mvm: fix double free on tx path
In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: mvm: fix double free on tx path.
We see kernel crashes and lockups and KASAN errors related to ax210
firmware crashes. One of the KASAN dumps pointed at the tx path,
and it appears there is indeed a way to double-free an skb.
If iwl_mvm_tx_skb_sta returns non-zero, then the 'skb' sent into the
method will be freed. But, in case where we build TSO skb buffer,
the skb may also be freed in error case. So, return 0 in that particular
error case and do cleanup manually.
BUG: KASAN: use-after-free in __list_del_entry_valid+0x12/0x90
iwlwifi 0000:06:00.0: 0x00000000 | tsf hi
Read of size 8 at addr ffff88813cfa4ba0 by task btserver/9650
CPU: 4 PID: 9650 Comm: b
Debian
CVE-2022-50248: linux - In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwi...
vendor_debian·2022·CVSS 7.8
CVE-2022-50248 [HIGH] CVE-2022-50248: linux - In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwi...
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix double free on tx path. We see kernel crashes and lockups and KASAN errors related to ax210 firmware crashes. One of the KASAN dumps pointed at the tx path, and it appears there is indeed a way to double-free an skb. If iwl_mvm_tx_skb_sta returns non-zero, then the 'skb' sent into the method will be freed. But, in case where we build TSO skb buffer, the skb may also be freed in error case. So, return 0 in that particular error case and do cleanup manually. BUG: KASAN: use-after-free in __list_del_entry_valid+0x12/0x90 iwlwifi 0000:06:00.0: 0x00000000 | tsf hi Read of size 8 at addr ffff88813cfa4ba0 by task btserver/9650 CPU: 4 PID: 9650 Comm: btserver Tainted: G W 5.19.8+ #5 iwlwifi 0000:06:00.0: 0x
GHSA
GHSA-p4ww-hfqg-jmvc: In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: mvm: fix double free on tx path
ghsa_unreviewed·2025-09-15
CVE-2022-50248 [HIGH] CWE-415 GHSA-p4ww-hfqg-jmvc: In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: mvm: fix double free on tx path
In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: mvm: fix double free on tx path.
We see kernel crashes and lockups and KASAN errors related to ax210
firmware crashes. One of the KASAN dumps pointed at the tx path,
and it appears there is indeed a way to double-free an skb.
If iwl_mvm_tx_skb_sta returns non-zero, then the 'skb' sent into the
method will be freed. But, in case where we build TSO skb buffer,
the skb may also be freed in error case. So, return 0 in that particular
error case and do cleanup manually.
BUG: KASAN: use-after-free in __list_del_entry_valid+0x12/0x90
iwlwifi 0000:06:00.0: 0x00000000 | tsf hi
Read of size 8 at addr ffff88813cfa4ba0 by task btserver/9650
CPU: 4 PID: 9650 Comm: btserver Tainted: G W 5.19.8+ #5
iwlwifi 0000:06:00.
OSV
CVE-2022-50248: In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix double free on tx path
osv·2025-09-15·CVSS 7.8
CVE-2022-50248 [HIGH] CVE-2022-50248: In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix double free on tx path
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: fix double free on tx path. We see kernel crashes and lockups and KASAN errors related to ax210 firmware crashes. One of the KASAN dumps pointed at the tx path, and it appears there is indeed a way to double-free an skb. If iwl_mvm_tx_skb_sta returns non-zero, then the 'skb' sent into the method will be freed. But, in case where we build TSO skb buffer, the skb may also be freed in error case. So, return 0 in that particular error case and do cleanup manually. BUG: KASAN: use-after-free in __list_del_entry_valid+0x12/0x90 iwlwifi 0000:06:00.0: 0x00000000 | tsf hi Read of size 8 at addr ffff88813cfa4ba0 by task btserver/9650 CPU: 4 PID: 9650 Comm: btserver Tainted: G W 5.19.8+ #5 iwlwifi 0000:06:00.0: 0x
OSV
linux-aws-5.15 vulnerabilities
osv·2025-04-29·CVSS 7.8
CVE-2022-0995 linux-aws-5.15 vulnerabilities
linux-aws-5.15 vulnerabilities
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- iSCSI Boot Firmware Table Attributes driver;
- Network drivers;
- File systems infrastructure;
- NTFS3 file system;
- Ethernet bridge;
- Ethtool driver;
- IPv6 networking;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-26837, CVE-2025-21993, CVE-2025-21702, CVE-2024-50248,
CVE-2024-46826, CVE-2024-50256, CV
OSV
linux-oracle-5.15 vulnerabilities
osv·2025-04-25·CVSS 7.8
CVE-2022-0995 linux-oracle-5.15 vulnerabilities
linux-oracle-5.15 vulnerabilities
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Network drivers;
- File systems infrastructure;
- NTFS3 file system;
- Ethernet bridge;
- Ethtool driver;
- IPv6 networking;
- Network traffic control;
- VMware vSockets driver;
(CVE-2025-21993, CVE-2025-21703, CVE-2024-50248, CVE-2025-21700,
CVE-2024-50256, CVE-2025-21701, CVE-2024-56651, CVE-2025-21756,
CVE-2024-26837
OSV
linux-intel-iot-realtime, linux-realtime vulnerabilities
osv·2025-04-24·CVSS 7.8
CVE-2022-0995 linux-intel-iot-realtime, linux-realtime vulnerabilities
linux-intel-iot-realtime, linux-realtime vulnerabilities
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Network drivers;
- File systems infrastructure;
- NTFS3 file system;
- Ethernet bridge;
- Ethtool driver;
- IPv6 networking;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-56651, CVE-2025-21756, CVE-2024-26837, CVE-2025-21700,
CVE-2024-46826, CVE-2024-50256, CVE-2024-50248, CVE-202
OSV
linux-aws-fips, linux-fips, linux-gcp-fips vulnerabilities
osv·2025-04-24·CVSS 7.8
CVE-2022-0995 linux-aws-fips, linux-fips, linux-gcp-fips vulnerabilities
linux-aws-fips, linux-fips, linux-gcp-fips vulnerabilities
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Network drivers;
- File systems infrastructure;
- NTFS3 file system;
- Ethernet bridge;
- Ethtool driver;
- IPv6 networking;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-26837, CVE-2025-21993, CVE-2025-21702, CVE-2025-21700,
CVE-2025-21701, CVE-2024-50248, CVE-2024-56651, CVE-2
OSV
linux-azure-fips vulnerabilities
osv·2025-04-24·CVSS 7.8
CVE-2022-0995 linux-azure-fips vulnerabilities
linux-azure-fips vulnerabilities
Jann Horn discovered that the watch_queue event notification subsystem in
the Linux kernel contained an out-of-bounds write vulnerability. A local
attacker could use this to cause a denial of service (system crash) or
escalate their privileges. (CVE-2022-0995)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Network drivers;
- Microsoft Azure Network Adapter (MANA) driver;
- File systems infrastructure;
- NTFS3 file system;
- Ethernet bridge;
- Ethtool driver;
- IPv6 networking;
- Network traffic control;
- VMware vSockets driver;
(CVE-2024-26837, CVE-2024-50248, CVE-2025-21756, CVE-2025-21701,
CVE-2024-50256, CVE-2025-21993
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/0473cbae2137b963bd0eaa74336131cb1d3bc6c3https://git.kernel.org/stable/c/0e1e311fd929c6a8dcfddcb4748c47b07e39821fhttps://git.kernel.org/stable/c/3a2ecd1ec14075117ccb3e85f0fed224578ec228https://git.kernel.org/stable/c/8fabe41fba907e4fd826acbbdb42e09c681c515ehttps://git.kernel.org/stable/c/ae966649f665bc3868b935157dd4a3c31810dcc0https://git.kernel.org/stable/c/d8e32f1bf1a9183a6aad560c6688500222d24299
2025-09-15
Published