CVE-2024-41087

Summary

In the Linux kernel, the following vulnerability has been resolved:

ata: libata-core: Fix double free on error

If e.g. the ata_port_alloc() call in ata_host_alloc() fails, we will jump to the err_out label, which will call devres_release_group(). devres_release_group() will trigger a call to ata_host_release(). ata_host_release() calls kfree(host), so executing the kfree(host) in ata_host_alloc() will lead to a double free:

kernel BUG at mm/slub.c:553! Oops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI CPU: 11 PID: 599 Comm: (udev-worker) Not tainted 6.10.0-rc5 #47 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014 RIP: 0010:kfree+0x2cf/0x2f0 Code: 5d 41 5e 41 5f 5d e9 80 d6 ff ff 4d 89 f1 41 b8 01 00 00 00 48 89 d9 48 89 da RSP: 0018:ffffc90000f377f0 EFLAGS: 00010246 RAX: ffff888112b1f2c0 RBX: ffff888112b1f2c0 RCX: ffff888112b1f320 RDX: 000000000000400b RSI: ffffffffc02c9de5 RDI: ffff888112b1f2c0 RBP: ffffc90000f37830 R08: 0000000000000000 R09: 0000000000000000 R10: ffffc90000f37610 R11: 617461203a736b6e R12: ffffea00044ac780 R13: ffff888100046400 R14: ffffffffc02c9de5 R15: 0000000000000006 FS: 00007f2f1cabe980(0000) GS:ffff88813b380000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2f1c3acf75 CR3: 0000000111724000 CR4: 0000000000750ef0 PKRU: 55555554 Call Trace: <TASK> ? __die_body.cold+0x19/0x27 ? die+0x2e/0x50 ? do_trap+0xca/0x110 ? do_error_trap+0x6a/0x90 ? kfree+0x2cf/0x2f0 ? exc_invalid_op+0x50/0x70 ? kfree+0x2cf/0x2f0 ? asm_exc_invalid_op+0x1a/0x20 ? ata_host_alloc+0xf5/0x120 [libata] ? ata_host_alloc+0xf5/0x120 [libata] ? kfree+0x2cf/0x2f0 ata_host_alloc+0xf5/0x120 [libata] ata_host_alloc_pinfo+0x14/0xa0 [libata] ahci_init_one+0x6c9/0xd20 [ahci]

Ensure that we will not call kfree(host) twice, by performing the kfree() only if the devres_open_group() call failed.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxdafd6c496381c1cd1f5ba9ad953e810bdcc931bc < 290073b2b557e4dc21ee74a1e403d9ae79e393a2affected
LinuxLinuxdafd6c496381c1cd1f5ba9ad953e810bdcc931bc < 56f1c7e290cd6c69c948fcd2e2a49e6a637ec38faffected
LinuxLinuxdafd6c496381c1cd1f5ba9ad953e810bdcc931bc < 010de9acbea58fbcbda08e3793d6262086a493feaffected
LinuxLinuxdafd6c496381c1cd1f5ba9ad953e810bdcc931bc < 5dde5f8b790274723640d29a07c5a97d57d62047affected
LinuxLinuxdafd6c496381c1cd1f5ba9ad953e810bdcc931bc < 702c1edbafb2e6f9d20f6d391273b5be09d366a5affected
LinuxLinuxdafd6c496381c1cd1f5ba9ad953e810bdcc931bc < 062e256516d7db5e7dcdef117f52025cd5c456e3affected
LinuxLinuxdafd6c496381c1cd1f5ba9ad953e810bdcc931bc < 8106da4d88bbaed809e023cc8014b766223d6e76affected
LinuxLinuxdafd6c496381c1cd1f5ba9ad953e810bdcc931bc < ab9e0c529eb7cafebdd31fe1644524e80a48b05daffected
LinuxLinux4.17affected
LinuxLinux0 < 4.17unaffected
LinuxLinux4.19.317 <= 4.19.*unaffected
LinuxLinux5.4.279 <= 5.4.*unaffected
LinuxLinux5.10.221 <= 5.10.*unaffected
LinuxLinux5.15.162 <= 5.15.*unaffected
LinuxLinux6.1.97 <= 6.1.*unaffected
LinuxLinux6.6.37 <= 6.6.*unaffected
LinuxLinux6.9.8 <= 6.9.*unaffected
LinuxLinux6.10 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References