mirror of
https://github.com/CVEProject/cvelist.git
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113 lines
8.4 KiB
JSON
113 lines
8.4 KiB
JSON
{
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"data_version": "4.0",
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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-2022-48913",
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"ASSIGNER": "cve@kernel.org",
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"STATE": "PUBLIC"
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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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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblktrace: fix use after free for struct blk_trace\n\nWhen tracing the whole disk, 'dropped' and 'msg' will be created\nunder 'q->debugfs_dir' and 'bt->dir' is NULL, thus blk_trace_free()\nwon't remove those files. What's worse, the following UAF can be\ntriggered because of accessing stale 'dropped' and 'msg':\n\n==================================================================\nBUG: KASAN: use-after-free in blk_dropped_read+0x89/0x100\nRead of size 4 at addr ffff88816912f3d8 by task blktrace/1188\n\nCPU: 27 PID: 1188 Comm: blktrace Not tainted 5.17.0-rc4-next-20220217+ #469\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20190727_073836-4\nCall Trace:\n <TASK>\n dump_stack_lvl+0x34/0x44\n print_address_description.constprop.0.cold+0xab/0x381\n ? blk_dropped_read+0x89/0x100\n ? blk_dropped_read+0x89/0x100\n kasan_report.cold+0x83/0xdf\n ? blk_dropped_read+0x89/0x100\n kasan_check_range+0x140/0x1b0\n blk_dropped_read+0x89/0x100\n ? blk_create_buf_file_callback+0x20/0x20\n ? kmem_cache_free+0xa1/0x500\n ? do_sys_openat2+0x258/0x460\n full_proxy_read+0x8f/0xc0\n vfs_read+0xc6/0x260\n ksys_read+0xb9/0x150\n ? vfs_write+0x3d0/0x3d0\n ? fpregs_assert_state_consistent+0x55/0x60\n ? exit_to_user_mode_prepare+0x39/0x1e0\n do_syscall_64+0x35/0x80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\nRIP: 0033:0x7fbc080d92fd\nCode: ce 20 00 00 75 10 b8 00 00 00 00 0f 05 48 3d 01 f0 ff ff 73 31 c3 48 83 1\nRSP: 002b:00007fbb95ff9cb0 EFLAGS: 00000293 ORIG_RAX: 0000000000000000\nRAX: ffffffffffffffda RBX: 00007fbb95ff9dc0 RCX: 00007fbc080d92fd\nRDX: 0000000000000100 RSI: 00007fbb95ff9cc0 RDI: 0000000000000045\nRBP: 0000000000000045 R08: 0000000000406299 R09: 00000000fffffffd\nR10: 000000000153afa0 R11: 0000000000000293 R12: 00007fbb780008c0\nR13: 00007fbb78000938 R14: 0000000000608b30 R15: 00007fbb780029c8\n </TASK>\n\nAllocated by task 1050:\n kasan_save_stack+0x1e/0x40\n __kasan_kmalloc+0x81/0xa0\n do_blk_trace_setup+0xcb/0x410\n __blk_trace_setup+0xac/0x130\n blk_trace_ioctl+0xe9/0x1c0\n blkdev_ioctl+0xf1/0x390\n __x64_sys_ioctl+0xa5/0xe0\n do_syscall_64+0x35/0x80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nFreed by task 1050:\n kasan_save_stack+0x1e/0x40\n kasan_set_track+0x21/0x30\n kasan_set_free_info+0x20/0x30\n __kasan_slab_free+0x103/0x180\n kfree+0x9a/0x4c0\n __blk_trace_remove+0x53/0x70\n blk_trace_ioctl+0x199/0x1c0\n blkdev_common_ioctl+0x5e9/0xb30\n blkdev_ioctl+0x1a5/0x390\n __x64_sys_ioctl+0xa5/0xe0\n do_syscall_64+0x35/0x80\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n\nThe buggy address belongs to the object at ffff88816912f380\n which belongs to the cache kmalloc-96 of size 96\nThe buggy address is located 88 bytes inside of\n 96-byte region [ffff88816912f380, ffff88816912f3e0)\nThe buggy address belongs to the page:\npage:000000009a1b4e7c refcount:1 mapcount:0 mapping:0000000000000000 index:0x0f\nflags: 0x17ffffc0000200(slab|node=0|zone=2|lastcpupid=0x1fffff)\nraw: 0017ffffc0000200 ffffea00044f1100 dead000000000002 ffff88810004c780\nraw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000\npage dumped because: kasan: bad access detected\n\nMemory state around the buggy address:\n ffff88816912f280: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc\n ffff88816912f300: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc\n>ffff88816912f380: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc\n ^\n ffff88816912f400: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc\n ffff88816912f480: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc\n=================================================================="
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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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}
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]
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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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{
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"version_affected": "<",
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"version_name": "c0ea57608b69",
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"version_value": "78acc7dbd84a"
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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": "5.12",
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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": "5.12",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.27",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.16.13",
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"lessThanOrEqual": "5.16.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.17",
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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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{
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"url": "https://git.kernel.org/stable/c/78acc7dbd84a8c173a08584750845c31611160f2",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/78acc7dbd84a8c173a08584750845c31611160f2"
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},
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{
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"url": "https://git.kernel.org/stable/c/6418634238ade86f2b08192928787f39d8afb58c",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/6418634238ade86f2b08192928787f39d8afb58c"
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},
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{
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"url": "https://git.kernel.org/stable/c/30939293262eb433c960c4532a0d59c4073b2b84",
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"refsource": "MISC",
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"name": "https://git.kernel.org/stable/c/30939293262eb433c960c4532a0d59c4073b2b84"
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}
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]
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},
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"generator": {
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"engine": "bippy-9e1c9544281a"
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}
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} |