vulnerability

Ubuntu: (Multiple Advisories) (CVE-2024-36901): Linux kernel vulnerabilities

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
05/30/2024
Added
08/09/2024
Modified
01/28/2025

Description

In the Linux kernel, the following vulnerability has been resolved:

ipv6: prevent NULL dereference in ip6_output()

According to syzbot, there is a chance that ip6_dst_idev()
returns NULL in ip6_output(). Most places in IPv6 stack
deal with a NULL idev just fine, but not here.

syzbot reported:

general protection fault, probably for non-canonical address 0xdffffc00000000bc: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x00000000000005e0-0x00000000000005e7]
CPU: 0 PID: 9775 Comm: syz-executor.4 Not tainted 6.9.0-rc5-syzkaller-00157-g6a30653b604a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:ip6_output+0x231/0x3f0 net/ipv6/ip6_output.c:237
Code: 3c 1e 00 49 89 df 74 08 4c 89 ef e8 19 58 db f7 48 8b 44 24 20 49 89 45 00 49 89 c5 48 8d 9d e0 05 00 00 48 89 d8 48 c1 e8 03 RSP: 0018:ffffc9000927f0d8 EFLAGS: 00010202
RAX: 00000000000000bc RBX: 00000000000005e0 RCX: 0000000000040000
RDX: ffffc900131f9000 RSI: 0000000000004f47 RDI: 0000000000004f48
RBP: 0000000000000000 R08: ffffffff8a1f0b9a R09: 1ffffffff1f51fad
R10: dffffc0000000000 R11: fffffbfff1f51fae R12: ffff8880293ec8c0
R13: ffff88805d7fc000 R14: 1ffff1100527d91a R15: dffffc0000000000
FS: 00007f135c6856c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000080 CR3: 0000000064096000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:

NF_HOOK include/linux/netfilter.h:314 [inline]
ip6_xmit+0xefe/0x17f0 net/ipv6/ip6_output.c:358
sctp_v6_xmit+0x9f2/0x13f0 net/sctp/ipv6.c:248
sctp_packet_transmit+0x26ad/0x2ca0 net/sctp/output.c:653
sctp_packet_singleton+0x22c/0x320 net/sctp/outqueue.c:783
sctp_outq_flush_ctrl net/sctp/outqueue.c:914 [inline]
sctp_outq_flush+0x6d5/0x3e20 net/sctp/outqueue.c:1212
sctp_side_effects net/sctp/sm_sideeffect.c:1198 [inline]
sctp_do_sm+0x59cc/0x60c0 net/sctp/sm_sideeffect.c:1169
sctp_primitive_ASSOCIATE+0x95/0xc0 net/sctp/primitive.c:73
__sctp_connect+0x9cd/0xe30 net/sctp/socket.c:1234
sctp_connect net/sctp/socket.c:4819 [inline]
sctp_inet_connect+0x149/0x1f0 net/sctp/socket.c:4834
__sys_connect_file net/socket.c:2048 [inline]
__sys_connect+0x2df/0x310 net/socket.c:2065
__do_sys_connect net/socket.c:2075 [inline]
__se_sys_connect net/socket.c:2072 [inline]
__x64_sys_connect+0x7a/0x90 net/socket.c:2072
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f

Solution(s)

ubuntu-upgrade-linux-image-4-15-0-1134-oracleubuntu-upgrade-linux-image-4-15-0-1155-kvmubuntu-upgrade-linux-image-4-15-0-1165-gcpubuntu-upgrade-linux-image-4-15-0-1172-awsubuntu-upgrade-linux-image-4-15-0-1180-azureubuntu-upgrade-linux-image-4-15-0-228-genericubuntu-upgrade-linux-image-4-15-0-228-lowlatencyubuntu-upgrade-linux-image-4-4-0-1135-awsubuntu-upgrade-linux-image-4-4-0-1136-kvmubuntu-upgrade-linux-image-4-4-0-1173-awsubuntu-upgrade-linux-image-4-4-0-258-genericubuntu-upgrade-linux-image-4-4-0-258-lowlatencyubuntu-upgrade-linux-image-5-15-0-1035-xilinx-zynqmpubuntu-upgrade-linux-image-5-15-0-1051-gkeopubuntu-upgrade-linux-image-5-15-0-1061-ibmubuntu-upgrade-linux-image-5-15-0-1061-raspiubuntu-upgrade-linux-image-5-15-0-1063-intel-iotgubuntu-upgrade-linux-image-5-15-0-1063-nvidiaubuntu-upgrade-linux-image-5-15-0-1063-nvidia-lowlatencyubuntu-upgrade-linux-image-5-15-0-1065-gkeubuntu-upgrade-linux-image-5-15-0-1065-kvmubuntu-upgrade-linux-image-5-15-0-1066-oracleubuntu-upgrade-linux-image-5-15-0-1067-gcpubuntu-upgrade-linux-image-5-15-0-1068-awsubuntu-upgrade-linux-image-5-15-0-1071-azureubuntu-upgrade-linux-image-5-15-0-1071-azure-fdeubuntu-upgrade-linux-image-5-15-0-119-genericubuntu-upgrade-linux-image-5-15-0-119-generic-64kubuntu-upgrade-linux-image-5-15-0-119-generic-lpaeubuntu-upgrade-linux-image-5-15-0-119-lowlatencyubuntu-upgrade-linux-image-5-15-0-119-lowlatency-64kubuntu-upgrade-linux-image-5-4-0-1043-iotubuntu-upgrade-linux-image-5-4-0-1050-xilinx-zynqmpubuntu-upgrade-linux-image-5-4-0-1078-ibmubuntu-upgrade-linux-image-5-4-0-1091-bluefieldubuntu-upgrade-linux-image-5-4-0-1098-gkeopubuntu-upgrade-linux-image-5-4-0-1115-raspiubuntu-upgrade-linux-image-5-4-0-1119-kvmubuntu-upgrade-linux-image-5-4-0-1130-oracleubuntu-upgrade-linux-image-5-4-0-1131-awsubuntu-upgrade-linux-image-5-4-0-1135-gcpubuntu-upgrade-linux-image-5-4-0-1136-azureubuntu-upgrade-linux-image-5-4-0-193-genericubuntu-upgrade-linux-image-5-4-0-193-generic-lpaeubuntu-upgrade-linux-image-5-4-0-193-lowlatencyubuntu-upgrade-linux-image-6-8-0-1008-gkeubuntu-upgrade-linux-image-6-8-0-1009-raspiubuntu-upgrade-linux-image-6-8-0-1010-ibmubuntu-upgrade-linux-image-6-8-0-1010-oemubuntu-upgrade-linux-image-6-8-0-1010-oracleubuntu-upgrade-linux-image-6-8-0-1010-oracle-64kubuntu-upgrade-linux-image-6-8-0-1011-nvidiaubuntu-upgrade-linux-image-6-8-0-1011-nvidia-64kubuntu-upgrade-linux-image-6-8-0-1011-nvidia-lowlatencyubuntu-upgrade-linux-image-6-8-0-1011-nvidia-lowlatency-64kubuntu-upgrade-linux-image-6-8-0-1012-azureubuntu-upgrade-linux-image-6-8-0-1012-azure-fdeubuntu-upgrade-linux-image-6-8-0-1012-gcpubuntu-upgrade-linux-image-6-8-0-1013-awsubuntu-upgrade-linux-image-6-8-0-40-genericubuntu-upgrade-linux-image-6-8-0-40-generic-64kubuntu-upgrade-linux-image-6-8-0-40-lowlatencyubuntu-upgrade-linux-image-6-8-0-40-lowlatency-64kubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-aws-hweubuntu-upgrade-linux-image-aws-lts-18-04ubuntu-upgrade-linux-image-aws-lts-20-04ubuntu-upgrade-linux-image-aws-lts-22-04ubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-azure-cvmubuntu-upgrade-linux-image-azure-fdeubuntu-upgrade-linux-image-azure-fde-lts-22-04ubuntu-upgrade-linux-image-azure-lts-18-04ubuntu-upgrade-linux-image-azure-lts-20-04ubuntu-upgrade-linux-image-azure-lts-22-04ubuntu-upgrade-linux-image-bluefieldubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-gcp-lts-18-04ubuntu-upgrade-linux-image-gcp-lts-20-04ubuntu-upgrade-linux-image-gcp-lts-22-04ubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-64kubuntu-upgrade-linux-image-generic-64k-hwe-20-04ubuntu-upgrade-linux-image-generic-64k-hwe-24-04ubuntu-upgrade-linux-image-generic-hwe-16-04ubuntu-upgrade-linux-image-generic-hwe-18-04ubuntu-upgrade-linux-image-generic-hwe-20-04ubuntu-upgrade-linux-image-generic-hwe-24-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-20-04ubuntu-upgrade-linux-image-generic-lts-xenialubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-gke-5-15ubuntu-upgrade-linux-image-gkeopubuntu-upgrade-linux-image-gkeop-5-15ubuntu-upgrade-linux-image-gkeop-5-4ubuntu-upgrade-linux-image-ibmubuntu-upgrade-linux-image-ibm-classicubuntu-upgrade-linux-image-ibm-lts-20-04ubuntu-upgrade-linux-image-ibm-lts-24-04ubuntu-upgrade-linux-image-intelubuntu-upgrade-linux-image-intel-iotgubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-64kubuntu-upgrade-linux-image-lowlatency-64k-hwe-20-04ubuntu-upgrade-linux-image-lowlatency-hwe-16-04ubuntu-upgrade-linux-image-lowlatency-hwe-18-04ubuntu-upgrade-linux-image-lowlatency-hwe-20-04ubuntu-upgrade-linux-image-lowlatency-lts-xenialubuntu-upgrade-linux-image-nvidiaubuntu-upgrade-linux-image-nvidia-6-8ubuntu-upgrade-linux-image-nvidia-64kubuntu-upgrade-linux-image-nvidia-64k-6-8ubuntu-upgrade-linux-image-nvidia-lowlatencyubuntu-upgrade-linux-image-nvidia-lowlatency-64kubuntu-upgrade-linux-image-oemubuntu-upgrade-linux-image-oem-20-04ubuntu-upgrade-linux-image-oem-20-04bubuntu-upgrade-linux-image-oem-20-04cubuntu-upgrade-linux-image-oem-20-04dubuntu-upgrade-linux-image-oem-24-04ubuntu-upgrade-linux-image-oem-24-04aubuntu-upgrade-linux-image-oem-osp1ubuntu-upgrade-linux-image-oracleubuntu-upgrade-linux-image-oracle-64kubuntu-upgrade-linux-image-oracle-lts-18-04ubuntu-upgrade-linux-image-oracle-lts-20-04ubuntu-upgrade-linux-image-oracle-lts-22-04ubuntu-upgrade-linux-image-raspiubuntu-upgrade-linux-image-raspi-hwe-18-04ubuntu-upgrade-linux-image-raspi-nolpaeubuntu-upgrade-linux-image-raspi2ubuntu-upgrade-linux-image-snapdragon-hwe-18-04ubuntu-upgrade-linux-image-virtualubuntu-upgrade-linux-image-virtual-hwe-16-04ubuntu-upgrade-linux-image-virtual-hwe-18-04ubuntu-upgrade-linux-image-virtual-hwe-20-04ubuntu-upgrade-linux-image-virtual-hwe-24-04ubuntu-upgrade-linux-image-virtual-lts-xenialubuntu-upgrade-linux-image-xilinx-zynqmp
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