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CVE-2023-53090

drm/amdkfd: Fix an illegal memory access

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 4.19.279, 5.4.238, 5.10.176, 5.15.104, 6.1.21, and 1 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix an illegal memory access In the kfd_wait_on_events() function, the kfd_event_waiter structure is allocated by alloc_event_waiters(), but the event field of the waiter structure is not initialized; When copy_from_user() fails in the kfd_wait_on_events() function, it will enter exception handling to release the previously allocated memory of the waiter structure; Due to the event field of the waiters structure being accessed in the free_waiters() function, this results in illegal memory access and system crash, here is the crash log: localhost kernel: RIP: 0010:native_queued_spin_lock_slowpath+0x185/0x1e0 localhost kernel: RSP: 0018:ffffaa53c362bd60 EFLAGS: 00010082 localhost kernel: RAX: ff3d3d6bff4007cb RBX: 0000000000000282 RCX: 00000000002c0000 localhost kernel: RDX: ffff9e855eeacb80 RSI: 000000000000279c RDI: ffffe7088f6a21d0 localhost kernel: RBP: ffffe7088f6a21d0 R08: 00000000002c0000 R09: ffffaa53c362be64 localhost kernel: R10: ffffaa53c362bbd8 R11: 0000000000000001 R12: 0000000000000002 localhost kernel: R13: ffff9e7ead15d600 R14: 0000000000000000 R15: ffff9e7ead15d698 localhost kernel: FS: 0000152a3d111700(0000) GS:ffff9e855ee80000(0000) knlGS:0000000000000000 localhost kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 localhost kernel: CR2: 0000152938000010 CR3: 000000044d7a4000 CR4: 00000000003506e0 localhost kernel: Call Trace: localhost kernel: _raw_spin_lock_irqsave+0x30/0x40 localhost kernel: remove_wait_queue+0x12/0x50 localhost kernel: kfd_wait_on_events+0x1b6/0x490 [hydcu] localhost kernel: ? ftrace_graph_caller+0xa0/0xa0 localhost kernel: kfd_ioctl+0x38c/0x4a0 [hydcu] localhost kernel: ? kfd_ioctl_set_trap_handler+0x70/0x70 [hydcu] localhost kernel: ? kfd_ioctl_create_queue+0x5a0/0x5a0 [hydcu] localhost kernel: ? ftrace_graph_caller+0xa0/0xa0 localhost kernel: __x64_sys_ioctl+0x8e/0xd0 localhost kernel: ? syscall_trace_enter.isra.18+0x143/0x1b0 localhost kernel: do_syscall_64+0x33/0x80 localhost kernel: entry_SYSCALL_64_after_hwframe+0x44/0xa9 localhost kernel: RIP: 0033:0x152a4dff68d7 Allocate the structure with kcalloc, and remove redundant 0-initialization and a redundant loop condition check.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From 4a488a7ad71401169cecee75dc94bcce642e2c53 · fixed in 5a3fb3b745af0ce46ec2e0c8e507bae45b937334; From 4a488a7ad71401169cecee75dc94bcce642e2c53 · fixed in bbf5eada4334a96e3a204b2307ff5b14dc380b0b; From 4a488a7ad71401169cecee75dc94bcce642e2c53 · fixed in 6936525142a015e854d0a23e9ad9ea0a28b3843d; From 4a488a7ad71401169cecee75dc94bcce642e2c53 · fixed in 2fece63b55c5d74cd6f5de51159e2cde37e10555; From 4a488a7ad71401169cecee75dc94bcce642e2c53 · fixed in d9923e7214a870b312bf61f6a89c7554d0966985; From 4a488a7ad71401169cecee75dc94bcce642e2c53 · fixed in 61f306f8df0d5559659c5578cf6d95236bcdcb25; From 4a488a7ad71401169cecee75dc94bcce642e2c53 · fixed in 4fc8fff378b2f2039f2a666d9f8c570f4e58352c

  • Linux Linux

    3.19

  • KernelLinux

    From 3.19.0 · fixed in 4.19.279; From 4.20.0 · fixed in 5.4.238; From 5.5.0 · fixed in 5.10.176; From 5.11.0 · fixed in 5.15.104; From 5.16.0 · fixed in 6.1.21; From 6.2.0 · fixed in 6.2.8

References 7

git.kernel.org