2024-05-30 16:00:35 +00:00
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{
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2024-06-10 15:00:36 +00:00
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"data_version": "4.0",
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2024-05-30 16:00:35 +00:00
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"data_type": "CVE",
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"data_format": "MITRE",
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"CVE_data_meta": {
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"ID": "CVE-2024-36972",
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2024-06-10 15:00:36 +00:00
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"ASSIGNER": "cve@kernel.org",
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"STATE": "PUBLIC"
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2024-05-30 16:00:35 +00:00
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},
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"description": {
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"description_data": [
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{
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"lang": "eng",
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2024-06-10 15:00:36 +00:00
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\naf_unix: Update unix_sk(sk)->oob_skb under sk_receive_queue lock.\n\nBilly Jheng Bing-Jhong reported a race between __unix_gc() and\nqueue_oob().\n\n__unix_gc() tries to garbage-collect close()d inflight sockets,\nand then if the socket has MSG_OOB in unix_sk(sk)->oob_skb, GC\nwill drop the reference and set NULL to it locklessly.\n\nHowever, the peer socket still can send MSG_OOB message and\nqueue_oob() can update unix_sk(sk)->oob_skb concurrently, leading\nNULL pointer dereference. [0]\n\nTo fix the issue, let's update unix_sk(sk)->oob_skb under the\nsk_receive_queue's lock and take it everywhere we touch oob_skb.\n\nNote that we defer kfree_skb() in manage_oob() to silence lockdep\nfalse-positive (See [1]).\n\n[0]:\nBUG: kernel NULL pointer dereference, address: 0000000000000008\n PF: supervisor write access in kernel mode\n PF: error_code(0x0002) - not-present page\nPGD 8000000009f5e067 P4D 8000000009f5e067 PUD 9f5d067 PMD 0\nOops: 0002 [#1] PREEMPT SMP PTI\nCPU: 3 PID: 50 Comm: kworker/3:1 Not tainted 6.9.0-rc5-00191-gd091e579b864 #110\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\nWorkqueue: events delayed_fput\nRIP: 0010:skb_dequeue (./include/linux/skbuff.h:2386 ./include/linux/skbuff.h:2402 net/core/skbuff.c:3847)\nCode: 39 e3 74 3e 8b 43 10 48 89 ef 83 e8 01 89 43 10 49 8b 44 24 08 49 c7 44 24 08 00 00 00 00 49 8b 14 24 49 c7 04 24 00 00 00 00 <48> 89 42 08 48 89 10 e8 e7 c5 42 00 4c 89 e0 5b 5d 41 5c c3 cc cc\nRSP: 0018:ffffc900001bfd48 EFLAGS: 00000002\nRAX: 0000000000000000 RBX: ffff8880088f5ae8 RCX: 00000000361289f9\nRDX: 0000000000000000 RSI: 0000000000000206 RDI: ffff8880088f5b00\nRBP: ffff8880088f5b00 R08: 0000000000080000 R09: 0000000000000001\nR10: 0000000000000003 R11: 0000000000000001 R12: ffff8880056b6a00\nR13: ffff8880088f5280 R14: 0000000000000001 R15: ffff8880088f5a80\nFS: 0000000000000000(0000) GS:ffff88807dd80000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000000000008 CR3: 0000000006314000 CR4: 00000000007506f0\nPKRU: 55555554\nCall Trace:\n <TASK>\n unix_release_sock (net/unix/af_unix.c:654)\n unix_release (net/unix/af_unix.c:1050)\n __sock_release (net/socket.c:660)\n sock_close (net/socket.c:1423)\n __fput (fs/file_table.c:423)\n delayed_fput (fs/file_table.c:444 (discriminator 3))\n process_one_work (kernel/workqueue.c:3259)\n worker_thread (kernel/workqueue.c:3329 kernel/workqueue.c:3416)\n kthread (kernel/kthread.c:388)\n ret_from_fork (arch/x86/kernel/process.c:153)\n ret_from_fork_asm (arch/x86/entry/entry_64.S:257)\n </TASK>\nModules linked in:\nCR2: 0000000000000008"
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}
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]
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},
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"problemtype": {
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"problemtype_data": [
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{
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"description": [
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{
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"lang": "eng",
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"value": "n/a"
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}
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]
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2024-05-30 16:00:35 +00:00
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}
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]
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2024-06-10 15:00:36 +00:00
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},
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"affects": {
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"vendor": {
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"vendor_data": [
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{
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"vendor_name": "Linux",
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"product": {
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"product_data": [
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{
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"product_name": "Linux",
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"version": {
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"version_data": [
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2024-06-16 13:00:33 +00:00
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{
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"version_affected": "<",
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"version_name": "4fe505c63aa3",
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"version_value": "518a994aa0b8"
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},
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2024-06-12 11:00:31 +00:00
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{
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"version_affected": "<",
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"version_name": "e0e09186d882",
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"version_value": "4bf6964451c3"
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},
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{
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"version_affected": "<",
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"version_name": "b74aa9ce13d0",
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"version_value": "d59ae9314b97"
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},
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2024-06-10 15:00:36 +00:00
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{
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"version_affected": "<",
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"version_name": "1279f9d9dec2",
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2024-06-12 11:00:31 +00:00
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"version_value": "4708f49add84"
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2024-06-10 15:00:36 +00:00
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},
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{
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"version_value": "not down converted",
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"x_cve_json_5_version_data": {
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"versions": [
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{
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"version": "6.8",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "6.8",
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"status": "unaffected",
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2024-11-05 10:00:33 +00:00
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"versionType": "semver"
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2024-06-10 15:00:36 +00:00
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},
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2024-06-16 13:00:33 +00:00
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{
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"version": "5.15.161",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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2024-11-05 10:00:33 +00:00
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"versionType": "semver"
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2024-06-16 13:00:33 +00:00
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},
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2024-06-12 11:00:31 +00:00
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{
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"version": "6.1.93",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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2024-11-05 10:00:33 +00:00
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"versionType": "semver"
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2024-06-12 11:00:31 +00:00
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},
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{
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"version": "6.6.33",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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2024-11-05 10:00:33 +00:00
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"versionType": "semver"
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2024-06-12 11:00:31 +00:00
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},
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{
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"version": "6.9.4",
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"lessThanOrEqual": "6.9.*",
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"status": "unaffected",
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2024-11-05 10:00:33 +00:00
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"versionType": "semver"
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2024-06-12 11:00:31 +00:00
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},
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2024-06-10 15:00:36 +00:00
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{
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2024-07-15 07:00:37 +00:00
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"version": "6.10",
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2024-06-10 15:00:36 +00:00
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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],
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"defaultStatus": "affected"
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}
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}
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]
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}
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}
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]
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}
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}
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]
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}
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},
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"references": {
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"reference_data": [
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2024-06-16 13:00:33 +00:00
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{
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"url": "https://git.kernel.org/stable/c/518a994aa0b87d96f1bc6678a7035df5d1fcd7a1",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/518a994aa0b87d96f1bc6678a7035df5d1fcd7a1"
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},
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2024-06-12 11:00:31 +00:00
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{
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"url": "https://git.kernel.org/stable/c/4bf6964451c3cb411fbaa1ae8b214b3d97a59bf1",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/4bf6964451c3cb411fbaa1ae8b214b3d97a59bf1"
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},
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{
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"url": "https://git.kernel.org/stable/c/d59ae9314b97e01c76a4171472441e55721ba636",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/d59ae9314b97e01c76a4171472441e55721ba636"
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},
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{
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"url": "https://git.kernel.org/stable/c/4708f49add84a57ce0ccc7bf9a6269845c631cc3",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/4708f49add84a57ce0ccc7bf9a6269845c631cc3"
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},
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2024-06-10 15:00:36 +00:00
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{
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"url": "https://git.kernel.org/stable/c/9841991a446c87f90f66f4b9fee6fe934c1336a2",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/9841991a446c87f90f66f4b9fee6fe934c1336a2"
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}
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]
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},
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"generator": {
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2024-11-05 10:00:33 +00:00
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"engine": "bippy-9e1c9544281a"
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2024-05-30 16:00:35 +00:00
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}
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}
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