177 lines
9.6 KiB
JSON
177 lines
9.6 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2022-48983",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2024-08-22T01:27:53.633Z",
|
|
"datePublished": "2024-10-21T20:06:00.376Z",
|
|
"dateUpdated": "2026-05-11T18:50:56.049Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-05-11T18:50:56.049Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring: Fix a null-ptr-deref in io_tctx_exit_cb()\n\nSyzkaller reports a NULL deref bug as follows:\n\n BUG: KASAN: null-ptr-deref in io_tctx_exit_cb+0x53/0xd3\n Read of size 4 at addr 0000000000000138 by task file1/1955\n\n CPU: 1 PID: 1955 Comm: file1 Not tainted 6.1.0-rc7-00103-gef4d3ea40565 #75\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2.el7 04/01/2014\n Call Trace:\n <TASK>\n dump_stack_lvl+0xcd/0x134\n ? io_tctx_exit_cb+0x53/0xd3\n kasan_report+0xbb/0x1f0\n ? io_tctx_exit_cb+0x53/0xd3\n kasan_check_range+0x140/0x190\n io_tctx_exit_cb+0x53/0xd3\n task_work_run+0x164/0x250\n ? task_work_cancel+0x30/0x30\n get_signal+0x1c3/0x2440\n ? lock_downgrade+0x6e0/0x6e0\n ? lock_downgrade+0x6e0/0x6e0\n ? exit_signals+0x8b0/0x8b0\n ? do_raw_read_unlock+0x3b/0x70\n ? do_raw_spin_unlock+0x50/0x230\n arch_do_signal_or_restart+0x82/0x2470\n ? kmem_cache_free+0x260/0x4b0\n ? putname+0xfe/0x140\n ? get_sigframe_size+0x10/0x10\n ? do_execveat_common.isra.0+0x226/0x710\n ? lockdep_hardirqs_on+0x79/0x100\n ? putname+0xfe/0x140\n ? do_execveat_common.isra.0+0x238/0x710\n exit_to_user_mode_prepare+0x15f/0x250\n syscall_exit_to_user_mode+0x19/0x50\n do_syscall_64+0x42/0xb0\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n RIP: 0023:0x0\n Code: Unable to access opcode bytes at 0xffffffffffffffd6.\n RSP: 002b:00000000fffb7790 EFLAGS: 00000200 ORIG_RAX: 000000000000000b\n RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\n RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000\n R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000\n R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000\n </TASK>\n Kernel panic - not syncing: panic_on_warn set ...\n\nThis happens because the adding of task_work from io_ring_exit_work()\nisn't synchronized with canceling all work items from eg exec. The\nexecution of the two are ordered in that they are both run by the task\nitself, but if io_tctx_exit_cb() is queued while we're canceling all\nwork items off exec AND gets executed when the task exits to userspace\nrather than in the main loop in io_uring_cancel_generic(), then we can\nfind current->io_uring == NULL and hit the above crash.\n\nIt's safe to add this NULL check here, because the execution of the two\npaths are done by the task itself.\n\n[axboe: add code comment and also put an explanation in the commit msg]"
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "unaffected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"io_uring/io_uring.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "d56d938b4bef3e1421a42023cdcd6e13c1f50831",
|
|
"lessThan": "f895511de9d27fff71dad2c234ad53b4afd2b06c",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "d56d938b4bef3e1421a42023cdcd6e13c1f50831",
|
|
"lessThan": "d91edca1943453aaaba4f380f6f364346222e5cf",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "d56d938b4bef3e1421a42023cdcd6e13c1f50831",
|
|
"lessThan": "998b30c3948e4d0b1097e639918c5cff332acac5",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "affected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"io_uring/io_uring.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "5.12",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "5.12",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.15.83",
|
|
"lessThanOrEqual": "5.15.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.0.13",
|
|
"lessThanOrEqual": "6.0.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.1",
|
|
"lessThanOrEqual": "*",
|
|
"status": "unaffected",
|
|
"versionType": "original_commit_for_fix"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"cpeApplicability": [
|
|
{
|
|
"nodes": [
|
|
{
|
|
"operator": "OR",
|
|
"negate": false,
|
|
"cpeMatch": [
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.12",
|
|
"versionEndExcluding": "5.15.83"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.12",
|
|
"versionEndExcluding": "6.0.13"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.12",
|
|
"versionEndExcluding": "6.1"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/f895511de9d27fff71dad2c234ad53b4afd2b06c"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/d91edca1943453aaaba4f380f6f364346222e5cf"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/998b30c3948e4d0b1097e639918c5cff332acac5"
|
|
}
|
|
],
|
|
"title": "io_uring: Fix a null-ptr-deref in io_tctx_exit_cb()",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
},
|
|
"adp": [
|
|
{
|
|
"metrics": [
|
|
{
|
|
"other": {
|
|
"type": "ssvc",
|
|
"content": {
|
|
"id": "CVE-2022-48983",
|
|
"role": "CISA Coordinator",
|
|
"options": [
|
|
{
|
|
"Exploitation": "none"
|
|
},
|
|
{
|
|
"Automatable": "no"
|
|
},
|
|
{
|
|
"Technical Impact": "partial"
|
|
}
|
|
],
|
|
"version": "2.0.3",
|
|
"timestamp": "2024-10-22T13:17:35.242008Z"
|
|
}
|
|
}
|
|
}
|
|
],
|
|
"title": "CISA ADP Vulnrichment",
|
|
"providerMetadata": {
|
|
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
|
|
"shortName": "CISA-ADP",
|
|
"dateUpdated": "2024-10-22T13:18:43.423Z"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
} |