CVE-2024-49994: block: fix integer overflow in BLKSECDISCARD
First published: Mon Oct 21 2024(Updated: )
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
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <6.10.14 | |
| Linux Kernel | >=6.11<6.11.3 | |
| debian/linux | <=5.10.223-1<=5.10.226-1<=6.1.123-1 | 6.1.128-1 6.12.12-1 6.12.15-1 |
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Reference Links
- https://git.kernel.org/stable/c/8476f8428e8b48fd7a0e4258fa2a96a8f4468239
- https://git.kernel.org/stable/c/a99bacb35c1416355eef957560e8fcac3a665549
- https://git.kernel.org/stable/c/0842ddd83939eb4db940b9af7d39e79722bc41aa
- https://git.kernel.org/stable/c/6c9915fa9410cbb9bd75ee283c03120046c56d3d
- https://git.kernel.org/stable/c/697ba0b6ec4ae04afb67d3911799b5e2043b4455
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-49994
- https://nvd.nist.gov/vuln/detail/CVE-2024-49994
- https://launchpad.net/bugs/cve/CVE-2024-49994
- https://security-tracker.debian.org/tracker/CVE-2024-49994
- https://ubuntu.com/security/CVE-2024-49994
- https://git.kernel.org/linus/697ba0b6ec4ae04afb67d3911799b5e2043b4455
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