UBUNTU-CVE-2022-48875: Medium severity ubuntu/linux vulnerability

Q: Which Ubuntu kernel packages are listed as affected?

The listed packages are ubuntu/linux-fips, ubuntu/linux, ubuntu/linux-aws, ubuntu/linux-azure, ubuntu/linux-gcp, ubuntu/linux-kvm, ubuntu/linux-oracle, and ubuntu/linux-aws-fips.

Q: What conditions trigger the failure?

The failure is a race during AMPDU block-ack session startup when deauthentication is in progress. In that condition, ieee80211_tx_ba_session_handle_start() can pass a NULL sdata value into the AMPDU driver operation path.

Q: What is the practical impact described for an affected system?

The provided trace shows a kernel page fault and Oops caused by dereferencing the NULL-derived sdata value. The supplied vector indicates availability impact to the vulnerable component.

Published Aug 21, 2024

Updated

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: sdata can be NULL during AMPDU start ieee80211txbasessionhandlestart() may get NULL for sdata when a deauthentication is ongoing. Here a trace triggering the race with the hostapd test multiapfronthaulonap: (gdb) list drvampduaction+0x46 0x8b16 is in drvampduaction (net/mac80211/driver-ops.c:396). 391 int ret = -EOPNOTSUPP; 392 393 mightsleep(); 394 395 sdata = getbsssdata(sdata); 396 if (!checksdataindriver(sdata)) 397 return -EIO; 398 399 tracedrvampduaction(local, sdata, params); 400 wlan0: moving STA 02:00:00:00:03:00 to state 3 wlan0: associated wlan0: deauthenticating from 02:00:00:00:03:00 by local choice (Reason: 3=DEAUTHLEAVING) wlan3.sta1: Open BA session requested for 02:00:00:00:00:00 tid 0 wlan3.sta1: dropped frame to 02:00:00:00:00:00 (unauthorized port) wlan0: moving STA 02:00:00:00:03:00 to state 2 wlan0: moving STA 02:00:00:00:03:00 to state 1 wlan0: Removed STA 02:00:00:00:03:00 wlan0: Destroyed STA 02:00:00:00:03:00 BUG: unable to handle page fault for address: fffffffffffffb48 PGD 11814067 P4D 11814067 PUD 11816067 PMD 0 Oops: 0000 [#1] PREEMPT SMP PTI CPU: 2 PID: 133397 Comm: kworker/u16:1 Tainted: G W 6.1.0-rc8-wt+ #59 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.0-20220807005459-localhost 04/01/2014 Workqueue: phy3 ieee80211basessionwork [mac80211] RIP: 0010:drvampduaction+0x46/0x280 [mac80211] Code: 53 48 89 f3 be 89 01 00 00 e8 d6 43 bf ef e8 21 46 81 f0 83 bb a0 1b 00 00 04 75 0e 48 8b 9b 28 0d 00 00 48 81 eb 10 0e 00 00 <8b> 93 58 09 00 00 f6 c2 20 0f 84 3b 01 00 00 8b 05 dd 1c 0f 00 85 RSP: 0018:ffffc900025ebd20 EFLAGS: 00010287 RAX: 0000000000000000 RBX: fffffffffffff1f0 RCX: ffff888102228240 RDX: 0000000080000000 RSI: ffffffff918c5de0 RDI: ffff888102228b40 RBP: ffffc900025ebd40 R08: 0000000000000001 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000000 R12: ffff888118c18ec0 R13: 0000000000000000 R14: ffffc900025ebd60 R15: ffff888018b7efb8 FS: 0000000000000000(0000) GS:ffff88817a600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffffffffffffb48 CR3: 0000000105228006 CR4: 0000000000170ee0 Call Trace: <TASK> ieee80211txbasessionhandlestart+0xd0/0x190 [mac80211] ieee80211basessionwork+0xff/0x2e0 [mac80211] processonework+0x29f/0x620 workerthread+0x4d/0x3d0 ? processonework+0x620/0x620 kthread+0xfb/0x120 ? kthreadcompleteandexit+0x20/0x20 retfromfork+0x22/0x30 </TASK>

Affected Software

157 affected componentsFixes available

ubuntu/linux*

ubuntu/linux-aws<4.4.0-1152.158

4.4.0-1152.158

ubuntu/linux-azure<4.15.0-1197.212~14.04.1

4.15.0-1197.212~14.04.1

ubuntu/linux-lts-xenial<4.4.0-278.312~14.04.1

4.4.0-278.312~14.04.1

ubuntu/linux<4.4.0-278.312

4.4.0-278.312

ubuntu/linux-aws<4.4.0-1190.205

4.4.0-1190.205

ubuntu/linux-aws-hwe<4.15.0-1189.202~16.04.1

4.15.0-1189.202~16.04.1

ubuntu/linux-azure<4.15.0-1197.212~16.04.1

4.15.0-1197.212~16.04.1

ubuntu/linux-gcp<4.15.0-1182.199~16.04.1

4.15.0-1182.199~16.04.1

ubuntu/linux-hwe<4.15.0-247.259~16.04.1

4.15.0-247.259~16.04.1

ubuntu/linux-kvm<4.4.0-1153.164

4.4.0-1153.164

ubuntu/linux-oracle<4.15.0-1151.162~16.04.1

4.15.0-1151.162~16.04.1

ubuntu/linux-hwe-edge*

ubuntu/linux-fips<4.4.0-1122.129

4.4.0-1122.129

ubuntu/linux-fips*

ubuntu/linux<4.15.0-247.259

4.15.0-247.259

ubuntu/linux-aws<4.15.0-1189.202

4.15.0-1189.202

ubuntu/linux-aws-5.0*

ubuntu/linux-aws-5.3*

ubuntu/linux-aws-5.4<5.4.0-1156.166~18.04.1

5.4.0-1156.166~18.04.1

ubuntu/linux-azure*

ubuntu/linux-azure-4.15<4.15.0-1197.212

4.15.0-1197.212

ubuntu/linux-azure-5.3*

ubuntu/linux-azure-5.4<5.4.0-1161.167~18.04.1

5.4.0-1161.167~18.04.1

ubuntu/linux-azure-edge*

ubuntu/linux-gcp*

ubuntu/linux-gcp-4.15<4.15.0-1182.199

4.15.0-1182.199

ubuntu/linux-gcp-5.3*

ubuntu/linux-gcp-5.4<5.4.0-1159.168~18.04.1

5.4.0-1159.168~18.04.1

ubuntu/linux-gke-4.15*

ubuntu/linux-gke-5.4*

ubuntu/linux-gkeop-5.4*

ubuntu/linux-hwe*

ubuntu/linux-hwe-5.4<5.4.0-227.247~18.04.1

5.4.0-227.247~18.04.1

ubuntu/linux-hwe-edge*

ubuntu/linux-ibm-5.4<5.4.0-1102.107~18.04.1

5.4.0-1102.107~18.04.1

ubuntu/linux-kvm<4.15.0-1171.176

4.15.0-1171.176

ubuntu/linux-oem*

ubuntu/linux-oracle<4.15.0-1151.162

4.15.0-1151.162

ubuntu/linux-oracle-5.0*

ubuntu/linux-oracle-5.3*

ubuntu/linux-oracle-5.4<5.4.0-1154.164~18.04.1

5.4.0-1154.164~18.04.1

ubuntu/linux-raspi-5.4<5.4.0-1139.152~18.04.1

5.4.0-1139.152~18.04.1

ubuntu/linux-aws-fips<4.15.0-2127.133

4.15.0-2127.133

ubuntu/linux-azure-fips<4.15.0-2106.112

4.15.0-2106.112

ubuntu/linux-fips<4.15.0-1144.156

4.15.0-1144.156

ubuntu/linux-gcp-fips<4.15.0-2090.96

4.15.0-2090.96

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux-aws-5.15<5.15.0-1034.38~20.04.1

5.15.0-1034.38~20.04.1

ubuntu/linux-azure-5.15<5.15.0-1036.43~20.04.1

5.15.0-1036.43~20.04.1

ubuntu/linux-gcp-5.15<5.15.0-1032.40~20.04.1

5.15.0-1032.40~20.04.1

ubuntu/linux-gkeop-5.15<5.15.0-1018.23~20.04.1

5.15.0-1018.23~20.04.1

ubuntu/linux-hwe-5.15<5.15.0-70.77~20.04.1

5.15.0-70.77~20.04.1

ubuntu/linux-intel-iotg-5.15<5.15.0-1030.35~20.04.1

5.15.0-1030.35~20.04.1

ubuntu/linux-lowlatency-hwe-5.15<5.15.0-70.77~20.04.1

5.15.0-70.77~20.04.1

ubuntu/linux-nvidia-tegra-5.15<5.15.0-1014.14~20.04.1

5.15.0-1014.14~20.04.1

ubuntu/linux-oracle-5.15<5.15.0-1033.39~20.04.1

5.15.0-1033.39~20.04.1

ubuntu/linux-riscv-5.15<5.15.0-1031.35~20.04.1

5.15.0-1031.35~20.04.1

ubuntu/linux<5.4.0-227.247

5.4.0-227.247

ubuntu/linux-aws<5.4.0-1156.166

5.4.0-1156.166

ubuntu/linux-aws-5.11*

ubuntu/linux-aws-5.13*

ubuntu/linux-aws-5.8*

ubuntu/linux-azure<5.4.0-1160.166

5.4.0-1160.166

ubuntu/linux-azure-5.11*

ubuntu/linux-azure-5.13*

ubuntu/linux-azure-5.8*

ubuntu/linux-azure-fde*

ubuntu/linux-bluefield<5.4.0-1116.123

5.4.0-1116.123

ubuntu/linux-gcp<5.4.0-1159.168

5.4.0-1159.168

ubuntu/linux-gcp-5.11*

ubuntu/linux-gcp-5.13*

ubuntu/linux-gcp-5.8*

ubuntu/linux-gke*

ubuntu/linux-gke-5.15*

ubuntu/linux-gkeop*

ubuntu/linux-hwe-5.11*

ubuntu/linux-hwe-5.13*

ubuntu/linux-hwe-5.8*

ubuntu/linux-ibm<5.4.0-1102.107

5.4.0-1102.107

ubuntu/linux-intel-5.13*

ubuntu/linux-iot<5.4.0-1060.63

5.4.0-1060.63

ubuntu/linux-kvm<5.4.0-1143.152

5.4.0-1143.152

ubuntu/linux-oem-5.10*

ubuntu/linux-oem-5.13*

ubuntu/linux-oem-5.6*

ubuntu/linux-oracle<5.4.0-1154.164

5.4.0-1154.164

ubuntu/linux-oracle-5.11*

ubuntu/linux-oracle-5.13*

ubuntu/linux-oracle-5.8*

ubuntu/linux-raspi<5.4.0-1139.152

5.4.0-1139.152

ubuntu/linux-raspi2*

ubuntu/linux-riscv*

ubuntu/linux-riscv-5.11*

ubuntu/linux-riscv-5.8*

ubuntu/linux-xilinx-zynqmp<5.4.0-1074.78

5.4.0-1074.78

ubuntu/linux-aws-fips<5.4.0-1155.165+fips1

5.4.0-1155.165+fips1

ubuntu/linux-azure-fips<5.4.0-1160.166+fips1

5.4.0-1160.166+fips1

ubuntu/linux-fips<5.4.0-1130.140

5.4.0-1130.140

ubuntu/linux-gcp-fips<5.4.0-1159.168+fips1

5.4.0-1159.168+fips1

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux<5.15.0-70.77

5.15.0-70.77

ubuntu/linux-allwinner-5.19*

ubuntu/linux-aws<5.15.0-1034.38

5.15.0-1034.38

ubuntu/linux-aws-5.19*

ubuntu/linux-aws-6.2*

ubuntu/linux-aws-6.5*

ubuntu/linux-azure<5.15.0-1036.43

5.15.0-1036.43

ubuntu/linux-azure-5.19*

ubuntu/linux-azure-6.2*

ubuntu/linux-azure-6.5*

ubuntu/linux-azure-fde<5.15.0-1036.43.1

5.15.0-1036.43.1

ubuntu/linux-azure-fde-5.19*

ubuntu/linux-azure-fde-6.2*

ubuntu/linux-gcp<5.15.0-1032.40

5.15.0-1032.40

ubuntu/linux-gcp-5.19*

ubuntu/linux-gcp-6.2*

ubuntu/linux-gcp-6.5*

ubuntu/linux-gke<5.15.0-1031.36

5.15.0-1031.36

ubuntu/linux-gkeop<5.15.0-1018.23

5.15.0-1018.23

ubuntu/linux-hwe-5.19*

ubuntu/linux-hwe-6.2*

ubuntu/linux-hwe-6.5*

ubuntu/linux-ibm<5.15.0-1028.31

5.15.0-1028.31

ubuntu/linux-intel-iotg<5.15.0-1028.33

5.15.0-1028.33

ubuntu/linux-kvm<5.15.0-1031.36

5.15.0-1031.36

ubuntu/linux-lowlatency<5.15.0-70.77

5.15.0-70.77

ubuntu/linux-lowlatency-hwe-5.19*

ubuntu/linux-lowlatency-hwe-6.2*

ubuntu/linux-lowlatency-hwe-6.5*

ubuntu/linux-nvidia<5.15.0-1023.23

5.15.0-1023.23

ubuntu/linux-nvidia-6.2*

ubuntu/linux-oem-5.17*

ubuntu/linux-oem-6.0*

ubuntu/linux-oem-6.1*

ubuntu/linux-oem-6.5*

ubuntu/linux-oracle<5.15.0-1033.39

5.15.0-1033.39

ubuntu/linux-oracle-6.5*

ubuntu/linux-raspi<5.15.0-1027.29

5.15.0-1027.29

ubuntu/linux-realtime*

ubuntu/linux-riscv*

ubuntu/linux-riscv-5.19*

ubuntu/linux-riscv-6.5*

ubuntu/linux-starfive-5.19*

ubuntu/linux-starfive-6.2*

ubuntu/linux-starfive-6.5*

ubuntu/linux-bluefield<5.15.0-1015.17

5.15.0-1015.17

ubuntu/linux-intel-iot-realtime<5.15.0-1024.29

5.15.0-1024.29

ubuntu/linux-realtime<5.15.0-1036.39

5.15.0-1036.39

ubuntu/linux-raspi-realtime*

ubuntu/linux-vmware*

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 4.4.0-1152.158
Upgrade
Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 4.15.0-1197.212~14.04.1
Upgrade
Upgrade ubuntu/linux-lts-xenial to a version that resolves this vulnerability.
Fixed in 4.4.0-278.312~14.04.1
Upgrade
Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 4.4.0-278.312
Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 4.4.0-1190.205
Upgrade
Upgrade ubuntu/linux-aws-hwe to a version that resolves this vulnerability.
Fixed in 4.15.0-1189.202~16.04.1
Upgrade
Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 4.15.0-1197.212~16.04.1
Upgrade
Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.
Fixed in 4.15.0-1182.199~16.04.1
Upgrade
Upgrade ubuntu/linux-hwe to a version that resolves this vulnerability.
Fixed in 4.15.0-247.259~16.04.1
Upgrade
Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.
Fixed in 4.4.0-1153.164
Upgrade
Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 4.15.0-1151.162~16.04.1
Upgrade
Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.
Fixed in 4.4.0-1122.129
Upgrade
Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 4.15.0-247.259
Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 4.15.0-1189.202
Upgrade
Upgrade ubuntu/linux-aws-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1156.166~18.04.1
Upgrade
Upgrade ubuntu/linux-azure-4.15 to a version that resolves this vulnerability.
Fixed in 4.15.0-1197.212
Upgrade
Upgrade ubuntu/linux-azure-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1161.167~18.04.1
Upgrade
Upgrade ubuntu/linux-gcp-4.15 to a version that resolves this vulnerability.
Fixed in 4.15.0-1182.199
Upgrade
Upgrade ubuntu/linux-gcp-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1159.168~18.04.1
Upgrade
Upgrade ubuntu/linux-hwe-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-227.247~18.04.1
Upgrade
Upgrade ubuntu/linux-ibm-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1102.107~18.04.1
Upgrade
Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.
Fixed in 4.15.0-1171.176
Upgrade
Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 4.15.0-1151.162
Upgrade
Upgrade ubuntu/linux-oracle-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1154.164~18.04.1
Upgrade
Upgrade ubuntu/linux-raspi-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1139.152~18.04.1
Upgrade
Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.
Fixed in 4.15.0-2127.133
Upgrade
Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.
Fixed in 4.15.0-2106.112
Upgrade
Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.
Fixed in 4.15.0-1144.156
Upgrade
Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.
Fixed in 4.15.0-2090.96
Upgrade
Upgrade ubuntu/linux-aws-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1034.38~20.04.1
Upgrade
Upgrade ubuntu/linux-azure-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1036.43~20.04.1
Upgrade
Upgrade ubuntu/linux-gcp-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1032.40~20.04.1
Upgrade
Upgrade ubuntu/linux-gkeop-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1018.23~20.04.1
Upgrade
Upgrade ubuntu/linux-hwe-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-70.77~20.04.1
Upgrade
Upgrade ubuntu/linux-intel-iotg-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1030.35~20.04.1
Upgrade
Upgrade ubuntu/linux-lowlatency-hwe-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-70.77~20.04.1
Upgrade
Upgrade ubuntu/linux-nvidia-tegra-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1014.14~20.04.1
Upgrade
Upgrade ubuntu/linux-oracle-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1033.39~20.04.1
Upgrade
Upgrade ubuntu/linux-riscv-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1031.35~20.04.1
Upgrade
Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 5.4.0-227.247
Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 5.4.0-1156.166
Upgrade
Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 5.4.0-1160.166
Upgrade
Upgrade ubuntu/linux-bluefield to a version that resolves this vulnerability.
Fixed in 5.4.0-1116.123
Upgrade
Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.
Fixed in 5.4.0-1159.168
Upgrade
Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.
Fixed in 5.4.0-1102.107
Upgrade
Upgrade ubuntu/linux-iot to a version that resolves this vulnerability.
Fixed in 5.4.0-1060.63
Upgrade
Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.
Fixed in 5.4.0-1143.152
Upgrade
Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 5.4.0-1154.164
Upgrade
Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.
Fixed in 5.4.0-1139.152
Upgrade
Upgrade ubuntu/linux-xilinx-zynqmp to a version that resolves this vulnerability.
Fixed in 5.4.0-1074.78
Upgrade
Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.
Fixed in 5.4.0-1155.165+fips1
Upgrade
Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.
Fixed in 5.4.0-1160.166+fips1
Upgrade
Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.
Fixed in 5.4.0-1130.140
Upgrade
Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.
Fixed in 5.4.0-1159.168+fips1
Upgrade
Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 5.15.0-70.77
Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 5.15.0-1034.38
Upgrade
Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 5.15.0-1036.43
Upgrade
Upgrade ubuntu/linux-azure-fde to a version that resolves this vulnerability.
Fixed in 5.15.0-1036.43.1
Upgrade
Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.
Fixed in 5.15.0-1032.40
Upgrade
Upgrade ubuntu/linux-gke to a version that resolves this vulnerability.
Fixed in 5.15.0-1031.36
Upgrade
Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.
Fixed in 5.15.0-1018.23
Upgrade
Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.
Fixed in 5.15.0-1028.31
Upgrade
Upgrade ubuntu/linux-intel-iotg to a version that resolves this vulnerability.
Fixed in 5.15.0-1028.33
Upgrade
Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.
Fixed in 5.15.0-1031.36
Upgrade
Upgrade ubuntu/linux-lowlatency to a version that resolves this vulnerability.
Fixed in 5.15.0-70.77
Upgrade
Upgrade ubuntu/linux-nvidia to a version that resolves this vulnerability.
Fixed in 5.15.0-1023.23
Upgrade
Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 5.15.0-1033.39
Upgrade
Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.
Fixed in 5.15.0-1027.29
Upgrade
Upgrade ubuntu/linux-bluefield to a version that resolves this vulnerability.
Fixed in 5.15.0-1015.17
Upgrade
Upgrade ubuntu/linux-intel-iot-realtime to a version that resolves this vulnerability.
Fixed in 5.15.0-1024.29
Upgrade
Upgrade ubuntu/linux-realtime to a version that resolves this vulnerability.
Fixed in 5.15.0-1036.39

Event History

Aug 21, 2024

CVE Published

via OSV·07:15 AM

Data Sourced

via OSV·07:15 AM

DescriptionSeverityAffected Software

Frequently Asked Questions

Which Ubuntu kernel packages are listed as affected?

The listed packages are ubuntu/linux-fips, ubuntu/linux, ubuntu/linux-aws, ubuntu/linux-azure, ubuntu/linux-gcp, ubuntu/linux-kvm, ubuntu/linux-oracle, and ubuntu/linux-aws-fips.

What conditions trigger the failure?

The failure is a race during AMPDU block-ack session startup when deauthentication is in progress. In that condition, ieee80211_tx_ba_session_handle_start() can pass a NULL sdata value into the AMPDU driver operation path.

What is the practical impact described for an affected system?

The provided trace shows a kernel page fault and Oops caused by dereferencing the NULL-derived sdata value. The supplied vector indicates availability impact to the vulnerable component.

UBUNTU-CVE-2022-48875: Medium severity ubuntu/linux vulnerability

Affected Software

Remediation

Event History

Frequently Asked Questions

Which Ubuntu kernel packages are listed as affected?

What conditions trigger the failure?

What is the practical impact described for an affected system?

Company

Resources

Contact

Frequently Asked Questions

Which Ubuntu kernel packages are listed as affected?

What conditions trigger the failure?

What is the practical impact described for an affected system?