| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring/sqpoll: fix sqpoll error handling races\n\nBUG: KASAN: slab-use-after-free in __lock_acquire+0x370b/0x4a10 kernel/locking/lockdep.c:5089\nCall Trace:\n<TASK>\n...\n_raw_spin_lock_irqsave+0x3d/0x60 kernel/locking/spinlock.c:162\nclass_raw_spinlock_irqsave_constructor include/linux/spinlock.h:551 [inline]\ntry_to_wake_up+0xb5/0x23c0 kernel/sched/core.c:4205\nio_sq_thread_park+0xac/0xe0 io_uring/sqpoll.c:55\nio_sq_thread_finish+0x6b/0x310 io_uring/sqpoll.c:96\nio_sq_offload_create+0x162/0x11d0 io_uring/sqpoll.c:497\nio_uring_create io_uring/io_uring.c:3724 [inline]\nio_uring_setup+0x1728/0x3230 io_uring/io_uring.c:3806\n...\n\nKun Hu reports that the SQPOLL creating error path has UAF, which\nhappens if io_uring_alloc_task_context() fails and then io_sq_thread()\nmanages to run and complete before the rest of error handling code,\nwhich means io_sq_thread_finish() is looking at already killed task.\n\nNote that this is mostly theoretical, requiring fault injection on\nthe allocation side to trigger in practice." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "io_uring/sqpoll.c" |
| ], |
| "versions": [ |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "6237331361711810d8f2e3fbfe2f7a6f9548f5e0", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "80120bb4eef7848d5aa3b1a0cd88367cd05fbe03", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "8e8494c83cf73168118587e9567e4f7e50ce4fd8", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", |
| "lessThan": "e33ac68e5e21ec1292490dfe061e75c0dbdd3bd4", |
| "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/sqpoll.c" |
| ], |
| "versions": [ |
| { |
| "version": "6.1.123", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.69", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.12.8", |
| "lessThanOrEqual": "6.12.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.13-rc5", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/6237331361711810d8f2e3fbfe2f7a6f9548f5e0" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/80120bb4eef7848d5aa3b1a0cd88367cd05fbe03" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/8e8494c83cf73168118587e9567e4f7e50ce4fd8" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/e33ac68e5e21ec1292490dfe061e75c0dbdd3bd4" |
| } |
| ], |
| "title": "io_uring/sqpoll: fix sqpoll error handling races", |
| "x_generator": { |
| "engine": "bippy-5f407fcff5a0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-56762", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
