{"id":"DEBIAN-CVE-2024-54031","details":"In the Linux kernel, the following vulnerability has been resolved:  netfilter: nft_set_hash: unaligned atomic read on struct nft_set_ext  Access to genmask field in struct nft_set_ext results in unaligned atomic read:  [   72.130109] Unable to handle kernel paging request at virtual address ffff0000c2bb708c [   72.131036] Mem abort info: [   72.131213]   ESR = 0x0000000096000021 [   72.131446]   EC = 0x25: DABT (current EL), IL = 32 bits [   72.132209]   SET = 0, FnV = 0 [   72.133216]   EA = 0, S1PTW = 0 [   72.134080]   FSC = 0x21: alignment fault [   72.135593] Data abort info: [   72.137194]   ISV = 0, ISS = 0x00000021, ISS2 = 0x00000000 [   72.142351]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0 [   72.145989]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [   72.150115] swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000237d27000 [   72.154893] [ffff0000c2bb708c] pgd=0000000000000000, p4d=180000023ffff403, pud=180000023f84b403, pmd=180000023f835403, +pte=0068000102bb7707 [   72.163021] Internal error: Oops: 0000000096000021 [#1] SMP [...] [   72.170041] CPU: 7 UID: 0 PID: 54 Comm: kworker/7:0 Tainted: G            E      6.13.0-rc3+ #2 [   72.170509] Tainted: [E]=UNSIGNED_MODULE [   72.170720] Hardware name: QEMU QEMU Virtual Machine, BIOS edk2-stable202302-for-qemu 03/01/2023 [   72.171192] Workqueue: events_power_efficient nft_rhash_gc [nf_tables] [   72.171552] pstate: 21400005 (nzCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) [   72.171915] pc : nft_rhash_gc+0x200/0x2d8 [nf_tables] [   72.172166] lr : nft_rhash_gc+0x128/0x2d8 [nf_tables] [   72.172546] sp : ffff800081f2bce0 [   72.172724] x29: ffff800081f2bd40 x28: ffff0000c2bb708c x27: 0000000000000038 [   72.173078] x26: ffff0000c6780ef0 x25: ffff0000c643df00 x24: ffff0000c6778f78 [   72.173431] x23: 000000000000001a x22: ffff0000c4b1f000 x21: ffff0000c6780f78 [   72.173782] x20: ffff0000c2bb70dc x19: ffff0000c2bb7080 x18: 0000000000000000 [   72.174135] x17: ffff0000c0a4e1c0 x16: 0000000000003000 x15: 0000ac26d173b978 [   72.174485] x14: ffffffffffffffff x13: 0000000000000030 x12: ffff0000c6780ef0 [   72.174841] x11: 0000000000000000 x10: ffff800081f2bcf8 x9 : ffff0000c3000000 [   72.175193] x8 : 00000000000004be x7 : 0000000000000000 x6 : 0000000000000000 [   72.175544] x5 : 0000000000000040 x4 : ffff0000c3000010 x3 : 0000000000000000 [   72.175871] x2 : 0000000000003a98 x1 : ffff0000c2bb708c x0 : 0000000000000004 [   72.176207] Call trace: [   72.176316]  nft_rhash_gc+0x200/0x2d8 [nf_tables] (P) [   72.176653]  process_one_work+0x178/0x3d0 [   72.176831]  worker_thread+0x200/0x3f0 [   72.176995]  kthread+0xe8/0xf8 [   72.177130]  ret_from_fork+0x10/0x20 [   72.177289] Code: 54fff984 d503201f d2800080 91003261 (f820303f) [   72.177557] ---[ end trace 0000000000000000 ]---  Align struct nft_set_ext to word size to address this and documentation it.  pahole reports that this increases the size of elements for rhash and pipapo in 8 bytes on x86_64.","modified":"2026-09-15T09:03:16.453925548Z","published":"2025-01-15T13:15:11.203Z","upstream":["CVE-2024-54031"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2024-54031"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.124-1"}]}],"versions":["6.1.106-1","6.1.106-2","6.1.106-3","6.1.112-1","6.1.115-1","6.1.119-1","6.1.123-1","6.1.27-1","6.1.37-1","6.1.38-1","6.1.38-2","6.1.38-2~bpo11+1","6.1.38-3","6.1.38-4","6.1.38-4~bpo11+1","6.1.52-1","6.1.55-1","6.1.55-1~bpo11+1","6.1.64-1","6.1.66-1","6.1.67-1","6.1.69-1","6.1.69-1~bpo11+1","6.1.76-1","6.1.76-1~bpo11+1","6.1.82-1","6.1.85-1","6.1.90-1","6.1.90-1~bpo11+1","6.1.94-1","6.1.94-1~bpo11+1","6.1.98-1","6.1.99-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-54031.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.9-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-54031.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.12.9-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2024-54031.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}