CVE-2024-49994

Summary

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

block: fix integer overflow in BLKSECDISCARD

I independently rediscovered

commit 22d24a544b0d49bbcbd61c8c0eaf77d3c9297155
block: fix overflow in blk_ioctl_discard()

but for secure erase.

Same problem:

uint64_t r[2] = {512, 18446744073709551104ULL};
ioctl(fd, BLKSECDISCARD, r);

will enter near infinite loop inside blkdev_issue_secure_erase():

a.out: attempt to access beyond end of device
loop0: rw=5, sector=3399043073, nr_sectors = 1024 limit=2048
bio_check_eod: 3286214 callbacks suppressed

Affected Software

VendorProductVersion RangeStatus
LinuxLinux44abff2c0b970ae3d310b97617525dc01f248d7c < 8476f8428e8b48fd7a0e4258fa2a96a8f4468239affected
LinuxLinux44abff2c0b970ae3d310b97617525dc01f248d7c < a99bacb35c1416355eef957560e8fcac3a665549affected
LinuxLinux44abff2c0b970ae3d310b97617525dc01f248d7c < 0842ddd83939eb4db940b9af7d39e79722bc41aaaffected
LinuxLinux44abff2c0b970ae3d310b97617525dc01f248d7c < 6c9915fa9410cbb9bd75ee283c03120046c56d3daffected
LinuxLinux44abff2c0b970ae3d310b97617525dc01f248d7c < 697ba0b6ec4ae04afb67d3911799b5e2043b4455affected
LinuxLinux5.19affected
LinuxLinux0 < 5.19unaffected
LinuxLinux6.1.128 <= 6.1.*unaffected
LinuxLinux6.6.75 <= 6.6.*unaffected
LinuxLinux6.10.14 <= 6.10.*unaffected
LinuxLinux6.11.3 <= 6.11.*unaffected
LinuxLinux6.12 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

CVE Program Container

Additional References

References